21556530

素因数分解:

$2^1\times 3^6\times 5^1\times {\mathrm{2957}}^1$

素因数の和:2982

約数の個数: 56

約数和(自身を含む): 58195692

約数和(自身を除く): 36639162

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 729, 810, 1215, 1458, 2430, 2957, 3645, 5914, 7290, 8871, 14785, 17742, 26613, 29570, 44355, 53226, 79839, 88710, 133065, 159678, 239517, 266130, 399195, 479034, 718551, 798390, 1197585, 1437102, 2155653, 2395170, 3592755, 4311306, 7185510, 10778265, 21556530]

約数ペア:

[(1, 21556530), (2, 10778265), (3, 7185510), (5, 4311306), (6, 3592755), (9, 2395170), (10, 2155653), (15, 1437102), (18, 1197585), (27, 798390), (30, 718551), (45, 479034), (54, 399195), (81, 266130), (90, 239517), (135, 159678), (162, 133065), (243, 88710), (270, 79839), (405, 53226), (486, 44355), (729, 29570), (810, 26613), (1215, 17742), (1458, 14785), (2430, 8871), (2957, 7290), (3645, 5914)]