217410820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{988231}}^1$

素因数の和:988251

約数の個数: 24

約数和(自身を含む): 498068928

約数和(自身を除く): 280658108

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 988231, 1976462, 3952924, 4941155, 9882310, 10870541, 19764620, 21741082, 43482164, 54352705, 108705410, 217410820]

約数ペア:

[(1, 217410820), (2, 108705410), (4, 54352705), (5, 43482164), (10, 21741082), (11, 19764620), (20, 10870541), (22, 9882310), (44, 4941155), (55, 3952924), (110, 1976462), (220, 988231)]