20810685

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{198197}}^1$

素因数の和:198212

約数の個数: 16

約数和(自身を含む): 38054016

約数和(自身を除く): 17243331

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 198197, 594591, 990985, 1387379, 2972955, 4162137, 6936895, 20810685]

約数ペア:

[(1, 20810685), (3, 6936895), (5, 4162137), (7, 2972955), (15, 1387379), (21, 990985), (35, 594591), (105, 198197)]