138875261

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{569}}^1$

素因数の和:893

約数の個数: 24

約数和(自身を含む): 171937080

約数和(自身を除く): 33061819

約数列:

[1, 7, 17, 49, 119, 293, 569, 833, 2051, 3983, 4981, 9673, 14357, 27881, 34867, 67711, 166717, 244069, 473977, 1167019, 2834189, 8169133, 19839323, 138875261]

約数ペア:

[(1, 138875261), (7, 19839323), (17, 8169133), (49, 2834189), (119, 1167019), (293, 473977), (569, 244069), (833, 166717), (2051, 67711), (3983, 34867), (4981, 27881), (9673, 14357)]