20988424

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{839}}^1$

素因数の和:957

約数の個数: 32

約数和(自身を含む): 40824000

約数和(自身を除く): 19835576

約数列:

[1, 2, 4, 8, 53, 59, 106, 118, 212, 236, 424, 472, 839, 1678, 3127, 3356, 6254, 6712, 12508, 25016, 44467, 49501, 88934, 99002, 177868, 198004, 355736, 396008, 2623553, 5247106, 10494212, 20988424]

約数ペア:

[(1, 20988424), (2, 10494212), (4, 5247106), (8, 2623553), (53, 396008), (59, 355736), (106, 198004), (118, 177868), (212, 99002), (236, 88934), (424, 49501), (472, 44467), (839, 25016), (1678, 12508), (3127, 6712), (3356, 6254)]