20512756

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{4357}}^1$

素因数の和:4479

約数の個数: 24

約数和(自身を含む): 39535776

約数和(自身を除く): 19023020

約数列:

[1, 2, 4, 11, 22, 44, 107, 214, 428, 1177, 2354, 4357, 4708, 8714, 17428, 47927, 95854, 191708, 466199, 932398, 1864796, 5128189, 10256378, 20512756]

約数ペア:

[(1, 20512756), (2, 10256378), (4, 5128189), (11, 1864796), (22, 932398), (44, 466199), (107, 191708), (214, 95854), (428, 47927), (1177, 17428), (2354, 8714), (4357, 4708)]