21291090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{709703}}^1$

素因数の和:709713

約数の個数: 16

約数和(自身を含む): 51098688

約数和(自身を除く): 29807598

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 709703, 1419406, 2129109, 3548515, 4258218, 7097030, 10645545, 21291090]

約数ペア:

[(1, 21291090), (2, 10645545), (3, 7097030), (5, 4258218), (6, 3548515), (10, 2129109), (15, 1419406), (30, 709703)]