121211209

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{9157}}^1$

素因数の和:9256

約数の個数: 16

約数和(自身を含む): 145355776

約数和(自身を除く): 24144567

約数列:

[1, 7, 31, 61, 217, 427, 1891, 9157, 13237, 64099, 283867, 558577, 1987069, 3910039, 17315887, 121211209]

約数ペア:

[(1, 121211209), (7, 17315887), (31, 3910039), (61, 1987069), (217, 558577), (427, 283867), (1891, 64099), (9157, 13237)]