131781806

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{12577}}^1$

素因数の和:12636

約数の個数: 24

約数和(自身を含む): 220970304

約数和(自身を除く): 89188498

約数列:

[1, 2, 13, 26, 31, 62, 169, 338, 403, 806, 5239, 10478, 12577, 25154, 163501, 327002, 389887, 779774, 2125513, 4251026, 5068531, 10137062, 65890903, 131781806]

約数ペア:

[(1, 131781806), (2, 65890903), (13, 10137062), (26, 5068531), (31, 4251026), (62, 2125513), (169, 779774), (338, 389887), (403, 327002), (806, 163501), (5239, 25154), (10478, 12577)]