20663305

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{2971}}^1$

素因数の和:3096

約数の個数: 16

約数和(自身を含む): 26961984

約数和(自身を除く): 6298679

約数列:

[1, 5, 13, 65, 107, 535, 1391, 2971, 6955, 14855, 38623, 193115, 317897, 1589485, 4132661, 20663305]

約数ペア:

[(1, 20663305), (5, 4132661), (13, 1589485), (65, 317897), (107, 193115), (535, 38623), (1391, 14855), (2971, 6955)]