20403962

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{1451}}^1$

素因数の和:1621

約数の個数: 16

約数和(自身を含む): 31363200

約数和(自身を除く): 10959238

約数列:

[1, 2, 79, 89, 158, 178, 1451, 2902, 7031, 14062, 114629, 129139, 229258, 258278, 10201981, 20403962]

約数ペア:

[(1, 20403962), (2, 10201981), (79, 258278), (89, 229258), (158, 129139), (178, 114629), (1451, 14062), (2902, 7031)]