12780821907

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{187669}}^1$

素因数の和:187752

約数の個数: 48

約数和(自身を含む): 22484367360

約数和(自身を除く): 9703545453

約数列:

[1, 3, 7, 9, 21, 23, 47, 63, 69, 141, 161, 207, 329, 423, 483, 987, 1081, 1449, 2961, 3243, 7567, 9729, 22701, 68103, 187669, 563007, 1313683, 1689021, 3941049, 4316387, 8820443, 11823147, 12949161, 26461329, 30214709, 38847483, 61743101, 79383987, 90644127, 185229303, 202870189, 271932381, 555687909, 608610567, 1420091323, 1825831701, 4260273969, 12780821907]

約数ペア:

[(1, 12780821907), (3, 4260273969), (7, 1825831701), (9, 1420091323), (21, 608610567), (23, 555687909), (47, 271932381), (63, 202870189), (69, 185229303), (141, 90644127), (161, 79383987), (207, 61743101), (329, 38847483), (423, 30214709), (483, 26461329), (987, 12949161), (1081, 11823147), (1449, 8820443), (2961, 4316387), (3243, 3941049), (7567, 1689021), (9729, 1313683), (22701, 563007), (68103, 187669)]