21561090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{718703}}^1$

素因数の和:718713

約数の個数: 16

約数和(自身を含む): 51746688

約数和(自身を除く): 30185598

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 718703, 1437406, 2156109, 3593515, 4312218, 7187030, 10780545, 21561090]

約数ペア:

[(1, 21561090), (2, 10780545), (3, 7187030), (5, 4312218), (6, 3593515), (10, 2156109), (15, 1437406), (30, 718703)]