21574750

素因数分解:

$2^1\times 5^3\times {\mathrm{211}}^1\times {\mathrm{409}}^1$

素因数の和:637

約数の個数: 32

約数和(自身を含む): 40678560

約数和(自身を除く): 19103810

約数列:

[1, 2, 5, 10, 25, 50, 125, 211, 250, 409, 422, 818, 1055, 2045, 2110, 4090, 5275, 10225, 10550, 20450, 26375, 51125, 52750, 86299, 102250, 172598, 431495, 862990, 2157475, 4314950, 10787375, 21574750]

約数ペア:

[(1, 21574750), (2, 10787375), (5, 4314950), (10, 2157475), (25, 862990), (50, 431495), (125, 172598), (211, 102250), (250, 86299), (409, 52750), (422, 51125), (818, 26375), (1055, 20450), (2045, 10550), (2110, 10225), (4090, 5275)]