81391121

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{3821}}^1$

素因数の和:4024

約数の個数: 16

約数和(自身を含む): 99066240

約数和(自身を除く): 17675119

約数列:

[1, 7, 17, 119, 179, 1253, 3043, 3821, 21301, 26747, 64957, 454699, 683959, 4787713, 11627303, 81391121]

約数ペア:

[(1, 81391121), (7, 11627303), (17, 4787713), (119, 683959), (179, 454699), (1253, 64957), (3043, 26747), (3821, 21301)]