20307931

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{881}}^1$

素因数の和:1014

約数の個数: 16

約数和(自身を含む): 24131520

約数和(自身を除く): 3823589

約数列:

[1, 7, 37, 89, 259, 623, 881, 3293, 6167, 23051, 32597, 78409, 228179, 548863, 2901133, 20307931]

約数ペア:

[(1, 20307931), (7, 2901133), (37, 548863), (89, 228179), (259, 78409), (623, 32597), (881, 23051), (3293, 6167)]