20810265

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{198193}}^1$

素因数の和:198208

約数の個数: 16

約数和(自身を含む): 38053248

約数和(自身を除く): 17242983

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 198193, 594579, 990965, 1387351, 2972895, 4162053, 6936755, 20810265]

約数ペア:

[(1, 20810265), (3, 6936755), (5, 4162053), (7, 2972895), (15, 1387351), (21, 990965), (35, 594579), (105, 198193)]