21951930

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:101

約数の個数: 256

約数和(自身を含む): 76640256

約数和(自身を除く): 54688326

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 17, 21, 22, 26, 30, 33, 34, 35, 39, 42, 43, 51, 55, 65, 66, 70, 77, 78, 85, 86, 91, 102, 105, 110, 119, 129, 130, 143, 154, 165, 170, 182, 187, 195, 210, 215, 221, 231, 238, 255, 258, 273, 286, 301, 330, 357, 374, 385, 390, 429, 430, 442, 455, 462, 473, 510, 546, 559, 561, 595, 602, 645, 663, 714, 715, 731, 770, 858, 903, 910, 935, 946, 1001, 1105, 1118, 1122, 1155, 1190, 1290, 1309, 1326, 1365, 1419, 1430, 1462, 1505, 1547, 1677, 1785, 1806, 1870, 2002, 2145, 2193, 2210, 2310, 2365, 2431, 2618, 2730, 2795, 2805, 2838, 3003, 3010, 3094, 3311, 3315, 3354, 3570, 3655, 3913, 3927, 4290, 4386, 4515, 4641, 4730, 4862, 5005, 5117, 5590, 5610, 6006, 6149, 6545, 6622, 6630, 7095, 7293, 7310, 7735, 7826, 7854, 8041, 8385, 9030, 9282, 9503, 9933, 10010, 10234, 10965, 11739, 12155, 12298, 13090, 14190, 14586, 15015, 15351, 15470, 16082, 16555, 16770, 17017, 18447, 19006, 19565, 19635, 19866, 21930, 23205, 23478, 24123, 24310, 25585, 28509, 30030, 30702, 30745, 33110, 34034, 36465, 36894, 39130, 39270, 40205, 43043, 46410, 47515, 48246, 49665, 51051, 51170, 56287, 57018, 58695, 61490, 66521, 72930, 76755, 80410, 85085, 86086, 92235, 95030, 99330, 102102, 104533, 112574, 117390, 120615, 129129, 133042, 142545, 153510, 168861, 170170, 184470, 199563, 209066, 215215, 241230, 255255, 258258, 281435, 285090, 313599, 332605, 337722, 399126, 430430, 510510, 522665, 562870, 627198, 645645, 665210, 731731, 844305, 997815, 1045330, 1291290, 1463462, 1567995, 1688610, 1995630, 2195193, 3135990, 3658655, 4390386, 7317310, 10975965, 21951930]

約数ペア:

[(1, 21951930), (2, 10975965), (3, 7317310), (5, 4390386), (6, 3658655), (7, 3135990), (10, 2195193), (11, 1995630), (13, 1688610), (14, 1567995), (15, 1463462), (17, 1291290), (21, 1045330), (22, 997815), (26, 844305), (30, 731731), (33, 665210), (34, 645645), (35, 627198), (39, 562870), (42, 522665), (43, 510510), (51, 430430), (55, 399126), (65, 337722), (66, 332605), (70, 313599), (77, 285090), (78, 281435), (85, 258258), (86, 255255), (91, 241230), (102, 215215), (105, 209066), (110, 199563), (119, 184470), (129, 170170), (130, 168861), (143, 153510), (154, 142545), (165, 133042), (170, 129129), (182, 120615), (187, 117390), (195, 112574), (210, 104533), (215, 102102), (221, 99330), (231, 95030), (238, 92235), (255, 86086), (258, 85085), (273, 80410), (286, 76755), (301, 72930), (330, 66521), (357, 61490), (374, 58695), (385, 57018), (390, 56287), (429, 51170), (430, 51051), (442, 49665), (455, 48246), (462, 47515), (473, 46410), (510, 43043), (546, 40205), (559, 39270), (561, 39130), (595, 36894), (602, 36465), (645, 34034), (663, 33110), (714, 30745), (715, 30702), (731, 30030), (770, 28509), (858, 25585), (903, 24310), (910, 24123), (935, 23478), (946, 23205), (1001, 21930), (1105, 19866), (1118, 19635), (1122, 19565), (1155, 19006), (1190, 18447), (1290, 17017), (1309, 16770), (1326, 16555), (1365, 16082), (1419, 15470), (1430, 15351), (1462, 15015), (1505, 14586), (1547, 14190), (1677, 13090), (1785, 12298), (1806, 12155), (1870, 11739), (2002, 10965), (2145, 10234), (2193, 10010), (2210, 9933), (2310, 9503), (2365, 9282), (2431, 9030), (2618, 8385), (2730, 8041), (2795, 7854), (2805, 7826), (2838, 7735), (3003, 7310), (3010, 7293), (3094, 7095), (3311, 6630), (3315, 6622), (3354, 6545), (3570, 6149), (3655, 6006), (3913, 5610), (3927, 5590), (4290, 5117), (4386, 5005), (4515, 4862), (4641, 4730)]