21265550

素因数分解:

$2^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{4211}}^1$

素因数の和:4324

約数の個数: 24

約数和(自身を含む): 39955032

約数和(自身を除く): 18689482

約数列:

[1, 2, 5, 10, 25, 50, 101, 202, 505, 1010, 2525, 4211, 5050, 8422, 21055, 42110, 105275, 210550, 425311, 850622, 2126555, 4253110, 10632775, 21265550]

約数ペア:

[(1, 21265550), (2, 10632775), (5, 4253110), (10, 2126555), (25, 850622), (50, 425311), (101, 210550), (202, 105275), (505, 42110), (1010, 21055), (2525, 8422), (4211, 5050)]