18729815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{2693}}^1$

素因数の和:2818

約数の個数: 16

約数和(自身を含む): 24439968

約数和(自身を除く): 5710153

約数列:

[1, 5, 13, 65, 107, 535, 1391, 2693, 6955, 13465, 35009, 175045, 288151, 1440755, 3745963, 18729815]

約数ペア:

[(1, 18729815), (5, 3745963), (13, 1440755), (65, 288151), (107, 175045), (535, 35009), (1391, 13465), (2693, 6955)]