About the Number

21000907980

21000907979 ← → 21000907981

2進数表記:10011100011110000000110110011001100

漢数字表記:二百十億九十万七千九百八十

素因数分解:

2 2 × 3 2 × 5 1 × 13 1 × 61 1 × 167 1 × 881 1

素因数の和:1137
約数の個数: 288
約数和(自身を含む): 70224755328
約数和(自身を除く): 49223847348

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 61, 65, 78, 90, 117, 122, 130, 156, 167, 180, 183, 195, 234, 244, 260, 305, 334, 366, 390, 468, 501, 549, 585, 610, 668, 732, 780, 793, 835, 881, 915, 1002, 1098, 1170, 1220, 1503, 1586, 1670, 1762, 1830, 2004, 2171, 2196, 2340, 2379, 2505, 2643, 2745, 3006, 3172, 3340, 3524, 3660, 3965, 4342, 4405, 4758, 5010, 5286, 5490, 6012, 6513, 7137, 7515, 7929, 7930, 8684, 8810, 9516, 10020, 10187, 10572, 10855, 10980, 11453, 11895, 13026, 13215, 14274, 15030, 15858, 15860, 17620, 19539, 20374, 21710, 22906, 23790, 26052, 26430, 28548, 30060, 30561, 31716, 32565, 34359, 35685, 39078, 39645, 40748, 43420, 45812, 47580, 50935, 52860, 53741, 57265, 61122, 65130, 68718, 71370, 78156, 79290, 91683, 97695, 101870, 103077, 107482, 114530, 122244, 130260, 132431, 137436, 142740, 147127, 152805, 158580, 161223, 171795, 183366, 195390, 203740, 206154, 214964, 229060, 264862, 268705, 294254, 305610, 322446, 343590, 366732, 390780, 397293, 412308, 441381, 458415, 483669, 515385, 529724, 537410, 588508, 611220, 644892, 662155, 687180, 698633, 735635, 794586, 806115, 882762, 916830, 967338, 1030770, 1074820, 1191879, 1324143, 1324310, 1397266, 1471270, 1589172, 1612230, 1765524, 1833660, 1912651, 1934676, 1986465, 2061540, 2095899, 2206905, 2383758, 2418345, 2648286, 2648620, 2794532, 2942540, 3224460, 3493165, 3825302, 3972930, 4191798, 4413810, 4767516, 4836690, 5296572, 5737953, 5959395, 6287697, 6620715, 6986330, 7650604, 7945860, 8383596, 8827620, 8974747, 9563255, 9673380, 10479495, 11475906, 11918790, 12575394, 13241430, 13972660, 17213859, 17949494, 19126510, 20958990, 22951812, 23837580, 25150788, 26482860, 26924241, 28689765, 31438485, 34427718, 35898988, 38253020, 41917980, 44873735, 53848482, 57379530, 62876970, 68855436, 80772723, 86069295, 89747470, 107696964, 114759060, 116671711, 125753940, 134621205, 161545446, 172138590, 179494940, 233343422, 269242410, 323090892, 344277180, 350015133, 403863615, 466686844, 538484820, 583358555, 700030266, 807727230, 1050045399, 1166717110, 1400060532, 1615454460, 1750075665, 2100090798, 2333434220, 3500151330, 4200181596, 5250226995, 7000302660, 10500453990, 21000907980]

約数ペア:
[(1, 21000907980), (2, 10500453990), (3, 7000302660), (4, 5250226995), (5, 4200181596), (6, 3500151330), (9, 2333434220), (10, 2100090798), (12, 1750075665), (13, 1615454460), (15, 1400060532), (18, 1166717110), (20, 1050045399), (26, 807727230), (30, 700030266), (36, 583358555), (39, 538484820), (45, 466686844), (52, 403863615), (60, 350015133), (61, 344277180), (65, 323090892), (78, 269242410), (90, 233343422), (117, 179494940), (122, 172138590), (130, 161545446), (156, 134621205), (167, 125753940), (180, 116671711), (183, 114759060), (195, 107696964), (234, 89747470), (244, 86069295), (260, 80772723), (305, 68855436), (334, 62876970), (366, 57379530), (390, 53848482), (468, 44873735), (501, 41917980), (549, 38253020), (585, 35898988), (610, 34427718), (668, 31438485), (732, 28689765), (780, 26924241), (793, 26482860), (835, 25150788), (881, 23837580), (915, 22951812), (1002, 20958990), (1098, 19126510), (1170, 17949494), (1220, 17213859), (1503, 13972660), (1586, 13241430), (1670, 12575394), (1762, 11918790), (1830, 11475906), (2004, 10479495), (2171, 9673380), (2196, 9563255), (2340, 8974747), (2379, 8827620), (2505, 8383596), (2643, 7945860), (2745, 7650604), (3006, 6986330), (3172, 6620715), (3340, 6287697), (3524, 5959395), (3660, 5737953), (3965, 5296572), (4342, 4836690), (4405, 4767516), (4758, 4413810), (5010, 4191798), (5286, 3972930), (5490, 3825302), (6012, 3493165), (6513, 3224460), (7137, 2942540), (7515, 2794532), (7929, 2648620), (7930, 2648286), (8684, 2418345), (8810, 2383758), (9516, 2206905), (10020, 2095899), (10187, 2061540), (10572, 1986465), (10855, 1934676), (10980, 1912651), (11453, 1833660), (11895, 1765524), (13026, 1612230), (13215, 1589172), (14274, 1471270), (15030, 1397266), (15858, 1324310), (15860, 1324143), (17620, 1191879), (19539, 1074820), (20374, 1030770), (21710, 967338), (22906, 916830), (23790, 882762), (26052, 806115), (26430, 794586), (28548, 735635), (30060, 698633), (30561, 687180), (31716, 662155), (32565, 644892), (34359, 611220), (35685, 588508), (39078, 537410), (39645, 529724), (40748, 515385), (43420, 483669), (45812, 458415), (47580, 441381), (50935, 412308), (52860, 397293), (53741, 390780), (57265, 366732), (61122, 343590), (65130, 322446), (68718, 305610), (71370, 294254), (78156, 268705), (79290, 264862), (91683, 229060), (97695, 214964), (101870, 206154), (103077, 203740), (107482, 195390), (114530, 183366), (122244, 171795), (130260, 161223), (132431, 158580), (137436, 152805), (142740, 147127)]

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