21599812

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{415381}}^1$

素因数の和:415398

約数の個数: 12

約数和(自身を含む): 40707436

約数和(自身を除く): 19107624

約数列:

[1, 2, 4, 13, 26, 52, 415381, 830762, 1661524, 5399953, 10799906, 21599812]

約数ペア:

[(1, 21599812), (2, 10799906), (4, 5399953), (13, 1661524), (26, 830762), (52, 415381)]