21142260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1609}}^1$

素因数の和:1697

約数の個数: 72

約数和(自身を含む): 65050440

約数和(自身を除く): 43908180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 73, 90, 146, 180, 219, 292, 365, 438, 657, 730, 876, 1095, 1314, 1460, 1609, 2190, 2628, 3218, 3285, 4380, 4827, 6436, 6570, 8045, 9654, 13140, 14481, 16090, 19308, 24135, 28962, 32180, 48270, 57924, 72405, 96540, 117457, 144810, 234914, 289620, 352371, 469828, 587285, 704742, 1057113, 1174570, 1409484, 1761855, 2114226, 2349140, 3523710, 4228452, 5285565, 7047420, 10571130, 21142260]

約数ペア:

[(1, 21142260), (2, 10571130), (3, 7047420), (4, 5285565), (5, 4228452), (6, 3523710), (9, 2349140), (10, 2114226), (12, 1761855), (15, 1409484), (18, 1174570), (20, 1057113), (30, 704742), (36, 587285), (45, 469828), (60, 352371), (73, 289620), (90, 234914), (146, 144810), (180, 117457), (219, 96540), (292, 72405), (365, 57924), (438, 48270), (657, 32180), (730, 28962), (876, 24135), (1095, 19308), (1314, 16090), (1460, 14481), (1609, 13140), (2190, 9654), (2628, 8045), (3218, 6570), (3285, 6436), (4380, 4827)]