21198554

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{9161}}^1$

素因数の和:9265

約数の個数: 16

約数和(自身を含む): 34632360

約数和(自身を除く): 13433806

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 9161, 18322, 119093, 238186, 815329, 1630658, 10599277, 21198554]

約数ペア:

[(1, 21198554), (2, 10599277), (13, 1630658), (26, 815329), (89, 238186), (178, 119093), (1157, 18322), (2314, 9161)]