21010815

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{66701}}^1$

素因数の和:66719

約数の個数: 24

約数和(自身を含む): 41622048

約数和(自身を除く): 20611233

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 66701, 200103, 333505, 466907, 600309, 1000515, 1400721, 2334535, 3001545, 4202163, 7003605, 21010815]

約数ペア:

[(1, 21010815), (3, 7003605), (5, 4202163), (7, 3001545), (9, 2334535), (15, 1400721), (21, 1000515), (35, 600309), (45, 466907), (63, 333505), (105, 200103), (315, 66701)]