21051526

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1\times {\mathrm{521}}^1$

素因数の和:839

約数の個数: 16

約数和(自身を含む): 32134320

約数和(自身を除く): 11082794

約数列:

[1, 2, 89, 178, 227, 454, 521, 1042, 20203, 40406, 46369, 92738, 118267, 236534, 10525763, 21051526]

約数ペア:

[(1, 21051526), (2, 10525763), (89, 236534), (178, 118267), (227, 92738), (454, 46369), (521, 40406), (1042, 20203)]