20391626

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{881}}^1$

素因数の和:1117

約数の個数: 16

約数和(自身を含む): 31243968

約数和(自身を除く): 10852342

約数列:

[1, 2, 71, 142, 163, 326, 881, 1762, 11573, 23146, 62551, 125102, 143603, 287206, 10195813, 20391626]

約数ペア:

[(1, 20391626), (2, 10195813), (71, 287206), (142, 143603), (163, 125102), (326, 62551), (881, 23146), (1762, 11573)]