81397121

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{2099}}^1$

素因数の和:2288

約数の個数: 16

約数和(自身を含む): 92904000

約数和(自身を除く): 11506879

約数列:

[1, 13, 19, 157, 247, 2041, 2099, 2983, 27287, 38779, 39881, 329543, 518453, 4284059, 6261317, 81397121]

約数ペア:

[(1, 81397121), (13, 6261317), (19, 4284059), (157, 518453), (247, 329543), (2041, 39881), (2099, 38779), (2983, 27287)]