21241090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163393}}^1$

素因数の和:163413

約数の個数: 16

約数和(自身を含む): 41175288

約数和(自身を除く): 19934198

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 163393, 326786, 816965, 1633930, 2124109, 4248218, 10620545, 21241090]

約数ペア:

[(1, 21241090), (2, 10620545), (5, 4248218), (10, 2124109), (13, 1633930), (26, 816965), (65, 326786), (130, 163393)]