20518238

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{8867}}^1$

素因数の和:8971

約数の個数: 16

約数和(自身を含む): 33521040

約数和(自身を除く): 13002802

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 8867, 17734, 115271, 230542, 789163, 1578326, 10259119, 20518238]

約数ペア:

[(1, 20518238), (2, 10259119), (13, 1578326), (26, 789163), (89, 230542), (178, 115271), (1157, 17734), (2314, 8867)]