21526900

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{3529}}^1$

素因数の和:3604

約数の個数: 36

約数和(自身を含む): 47492620

約数和(自身を除く): 25965720

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 1220, 1525, 3050, 3529, 6100, 7058, 14116, 17645, 35290, 70580, 88225, 176450, 215269, 352900, 430538, 861076, 1076345, 2152690, 4305380, 5381725, 10763450, 21526900]

約数ペア:

[(1, 21526900), (2, 10763450), (4, 5381725), (5, 4305380), (10, 2152690), (20, 1076345), (25, 861076), (50, 430538), (61, 352900), (100, 215269), (122, 176450), (244, 88225), (305, 70580), (610, 35290), (1220, 17645), (1525, 14116), (3050, 7058), (3529, 6100)]