18774704

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90263}}^1$

素因数の和:90284

約数の個数: 20

約数和(自身を含む): 39174576

約数和(自身を除く): 20399872

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90263, 180526, 361052, 722104, 1173419, 1444208, 2346838, 4693676, 9387352, 18774704]

約数ペア:

[(1, 18774704), (2, 9387352), (4, 4693676), (8, 2346838), (13, 1444208), (16, 1173419), (26, 722104), (52, 361052), (104, 180526), (208, 90263)]