71392139

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{263}}^1$

素因数の和:459

約数の個数: 32

約数和(自身を含む): 93434880

約数和(自身を除く): 22042741

約数列:

[1, 7, 13, 19, 91, 133, 157, 247, 263, 1099, 1729, 1841, 2041, 2983, 3419, 4997, 14287, 20881, 23933, 34979, 38779, 41291, 64961, 271453, 289037, 454727, 536783, 784529, 3757481, 5491703, 10198877, 71392139]

約数ペア:

[(1, 71392139), (7, 10198877), (13, 5491703), (19, 3757481), (91, 784529), (133, 536783), (157, 454727), (247, 289037), (263, 271453), (1099, 64961), (1729, 41291), (1841, 38779), (2041, 34979), (2983, 23933), (3419, 20881), (4997, 14287)]