21160750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{383}}^1$

素因数の和:430

約数の個数: 64

約数和(自身を含む): 45287424

約数和(自身を除く): 24126674

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 125, 130, 170, 221, 250, 325, 383, 425, 442, 650, 766, 850, 1105, 1625, 1915, 2125, 2210, 3250, 3830, 4250, 4979, 5525, 6511, 9575, 9958, 11050, 13022, 19150, 24895, 27625, 32555, 47875, 49790, 55250, 65110, 84643, 95750, 124475, 162775, 169286, 248950, 325550, 423215, 622375, 813875, 846430, 1244750, 1627750, 2116075, 4232150, 10580375, 21160750]

約数ペア:

[(1, 21160750), (2, 10580375), (5, 4232150), (10, 2116075), (13, 1627750), (17, 1244750), (25, 846430), (26, 813875), (34, 622375), (50, 423215), (65, 325550), (85, 248950), (125, 169286), (130, 162775), (170, 124475), (221, 95750), (250, 84643), (325, 65110), (383, 55250), (425, 49790), (442, 47875), (650, 32555), (766, 27625), (850, 24895), (1105, 19150), (1625, 13022), (1915, 11050), (2125, 9958), (2210, 9575), (3250, 6511), (3830, 5525), (4250, 4979)]