21105702920

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{163}}^1\times {\mathrm{30253}}^1$

素因数の和:30534

約数の個数: 64

約数和(自身を含む): 48227296320

約数和(自身を除く): 27121593400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 163, 214, 326, 428, 535, 652, 815, 856, 1070, 1304, 1630, 2140, 3260, 4280, 6520, 17441, 30253, 34882, 60506, 69764, 87205, 121012, 139528, 151265, 174410, 242024, 302530, 348820, 605060, 697640, 1210120, 3237071, 4931239, 6474142, 9862478, 12948284, 16185355, 19724956, 24656195, 25896568, 32370710, 39449912, 49312390, 64741420, 98624780, 129482840, 197249560, 527642573, 1055285146, 2110570292, 2638212865, 4221140584, 5276425730, 10552851460, 21105702920]

約数ペア:

[(1, 21105702920), (2, 10552851460), (4, 5276425730), (5, 4221140584), (8, 2638212865), (10, 2110570292), (20, 1055285146), (40, 527642573), (107, 197249560), (163, 129482840), (214, 98624780), (326, 64741420), (428, 49312390), (535, 39449912), (652, 32370710), (815, 25896568), (856, 24656195), (1070, 19724956), (1304, 16185355), (1630, 12948284), (2140, 9862478), (3260, 6474142), (4280, 4931239), (6520, 3237071), (17441, 1210120), (30253, 697640), (34882, 605060), (60506, 348820), (69764, 302530), (87205, 242024), (121012, 174410), (139528, 151265)]