21268170

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1$

素因数の和:79

約数の個数: 240

約数和(自身を含む): 74156544

約数和(自身を除く): 52888374

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 27, 30, 31, 33, 35, 42, 45, 54, 55, 62, 63, 66, 70, 77, 81, 90, 93, 99, 105, 110, 121, 126, 135, 154, 155, 162, 165, 186, 189, 198, 210, 217, 231, 242, 270, 279, 297, 310, 315, 330, 341, 363, 378, 385, 405, 434, 462, 465, 495, 558, 567, 594, 605, 630, 651, 682, 693, 726, 770, 810, 837, 847, 891, 930, 945, 990, 1023, 1085, 1089, 1134, 1155, 1210, 1302, 1386, 1395, 1485, 1674, 1694, 1705, 1782, 1815, 1890, 1953, 2046, 2079, 2170, 2178, 2310, 2387, 2511, 2541, 2790, 2835, 2970, 3069, 3255, 3267, 3410, 3465, 3630, 3751, 3906, 4158, 4185, 4235, 4455, 4774, 5022, 5082, 5115, 5445, 5670, 5859, 6138, 6237, 6510, 6534, 6930, 7161, 7502, 7623, 8370, 8470, 8910, 9207, 9765, 9801, 10230, 10395, 10890, 11253, 11718, 11935, 12474, 12555, 12705, 14322, 15246, 15345, 16335, 17577, 18414, 18755, 19530, 19602, 20790, 21483, 22506, 22869, 23870, 25110, 25410, 26257, 27621, 29295, 30690, 31185, 32670, 33759, 35154, 35805, 37510, 38115, 42966, 45738, 46035, 49005, 52514, 55242, 56265, 58590, 62370, 64449, 67518, 68607, 71610, 76230, 78771, 87885, 92070, 98010, 101277, 107415, 112530, 114345, 128898, 131285, 137214, 138105, 157542, 168795, 175770, 193347, 202554, 214830, 228690, 236313, 262570, 276210, 303831, 322245, 337590, 343035, 386694, 393855, 472626, 506385, 607662, 644490, 686070, 708939, 787710, 966735, 1012770, 1181565, 1417878, 1519155, 1933470, 2126817, 2363130, 3038310, 3544695, 4253634, 7089390, 10634085, 21268170]

約数ペア:

[(1, 21268170), (2, 10634085), (3, 7089390), (5, 4253634), (6, 3544695), (7, 3038310), (9, 2363130), (10, 2126817), (11, 1933470), (14, 1519155), (15, 1417878), (18, 1181565), (21, 1012770), (22, 966735), (27, 787710), (30, 708939), (31, 686070), (33, 644490), (35, 607662), (42, 506385), (45, 472626), (54, 393855), (55, 386694), (62, 343035), (63, 337590), (66, 322245), (70, 303831), (77, 276210), (81, 262570), (90, 236313), (93, 228690), (99, 214830), (105, 202554), (110, 193347), (121, 175770), (126, 168795), (135, 157542), (154, 138105), (155, 137214), (162, 131285), (165, 128898), (186, 114345), (189, 112530), (198, 107415), (210, 101277), (217, 98010), (231, 92070), (242, 87885), (270, 78771), (279, 76230), (297, 71610), (310, 68607), (315, 67518), (330, 64449), (341, 62370), (363, 58590), (378, 56265), (385, 55242), (405, 52514), (434, 49005), (462, 46035), (465, 45738), (495, 42966), (558, 38115), (567, 37510), (594, 35805), (605, 35154), (630, 33759), (651, 32670), (682, 31185), (693, 30690), (726, 29295), (770, 27621), (810, 26257), (837, 25410), (847, 25110), (891, 23870), (930, 22869), (945, 22506), (990, 21483), (1023, 20790), (1085, 19602), (1089, 19530), (1134, 18755), (1155, 18414), (1210, 17577), (1302, 16335), (1386, 15345), (1395, 15246), (1485, 14322), (1674, 12705), (1694, 12555), (1705, 12474), (1782, 11935), (1815, 11718), (1890, 11253), (1953, 10890), (2046, 10395), (2079, 10230), (2170, 9801), (2178, 9765), (2310, 9207), (2387, 8910), (2511, 8470), (2541, 8370), (2790, 7623), (2835, 7502), (2970, 7161), (3069, 6930), (3255, 6534), (3267, 6510), (3410, 6237), (3465, 6138), (3630, 5859), (3751, 5670), (3906, 5445), (4158, 5115), (4185, 5082), (4235, 5022), (4455, 4774)]