21660041

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{757}}^1$

素因数の和:872

約数の個数: 16

約数和(自身を含む): 24450048

約数和(自身を除く): 2790007

約数列:

[1, 13, 31, 71, 403, 757, 923, 2201, 9841, 23467, 28613, 53747, 305071, 698711, 1666157, 21660041]

約数ペア:

[(1, 21660041), (13, 1666157), (31, 698711), (71, 305071), (403, 53747), (757, 28613), (923, 23467), (2201, 9841)]