20103895

素因数分解:

$5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{1871}}^1$

素因数の和:2190

約数の個数: 16

約数和(自身を含む): 27675648

約数和(自身を除く): 7571753

約数列:

[1, 5, 7, 35, 307, 1535, 1871, 2149, 9355, 10745, 13097, 65485, 574397, 2871985, 4020779, 20103895]

約数ペア:

[(1, 20103895), (5, 4020779), (7, 2871985), (35, 574397), (307, 65485), (1535, 13097), (1871, 10745), (2149, 9355)]