20291876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{4231}}^1$

素因数の和:4355

約数の個数: 24

約数和(自身を含む): 39103680

約数和(自身を除く): 18811804

約数列:

[1, 2, 4, 11, 22, 44, 109, 218, 436, 1199, 2398, 4231, 4796, 8462, 16924, 46541, 93082, 186164, 461179, 922358, 1844716, 5072969, 10145938, 20291876]

約数ペア:

[(1, 20291876), (2, 10145938), (4, 5072969), (11, 1844716), (22, 922358), (44, 461179), (109, 186164), (218, 93082), (436, 46541), (1199, 16924), (2398, 8462), (4231, 4796)]