19915258

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{22079}}^1$

素因数の和:22133

約数の個数: 16

約数和(自身を含む): 33384960

約数和(自身を除く): 13469702

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 22079, 44158, 242869, 485738, 905239, 1810478, 9957629, 19915258]

約数ペア:

[(1, 19915258), (2, 9957629), (11, 1810478), (22, 905239), (41, 485738), (82, 242869), (451, 44158), (902, 22079)]