20486205

素因数分解:

$3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1889}}^1$

素因数の和:2141

約数の個数: 24

約数和(自身を含む): 35675640

約数和(自身を除く): 15189435

約数列:

[1, 3, 5, 9, 15, 45, 241, 723, 1205, 1889, 2169, 3615, 5667, 9445, 10845, 17001, 28335, 85005, 455249, 1365747, 2276245, 4097241, 6828735, 20486205]

約数ペア:

[(1, 20486205), (3, 6828735), (5, 4097241), (9, 2276245), (15, 1365747), (45, 455249), (241, 85005), (723, 28335), (1205, 17001), (1889, 10845), (2169, 9445), (3615, 5667)]