18905224

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^3\times {\mathrm{37}}^1$

素因数の和:107

約数の個数: 64

約数和(自身を含む): 41655600

約数和(自身を除く): 22750376

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 37, 52, 68, 74, 104, 136, 148, 221, 289, 296, 442, 481, 578, 629, 884, 962, 1156, 1258, 1768, 1924, 2312, 2516, 3757, 3848, 4913, 5032, 7514, 8177, 9826, 10693, 15028, 16354, 19652, 21386, 30056, 32708, 39304, 42772, 63869, 65416, 85544, 127738, 139009, 181781, 255476, 278018, 363562, 510952, 556036, 727124, 1112072, 1454248, 2363153, 4726306, 9452612, 18905224]

約数ペア:

[(1, 18905224), (2, 9452612), (4, 4726306), (8, 2363153), (13, 1454248), (17, 1112072), (26, 727124), (34, 556036), (37, 510952), (52, 363562), (68, 278018), (74, 255476), (104, 181781), (136, 139009), (148, 127738), (221, 85544), (289, 65416), (296, 63869), (442, 42772), (481, 39304), (578, 32708), (629, 30056), (884, 21386), (962, 19652), (1156, 16354), (1258, 15028), (1768, 10693), (1924, 9826), (2312, 8177), (2516, 7514), (3757, 5032), (3848, 4913)]