20447161

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{18143}}^1$

素因数の和:18180

約数の個数: 12

約数和(自身を含む): 24820992

約数和(自身を除く): 4373831

約数列:

[1, 7, 23, 49, 161, 1127, 18143, 127001, 417289, 889007, 2921023, 20447161]

約数ペア:

[(1, 20447161), (7, 2921023), (23, 889007), (49, 417289), (161, 127001), (1127, 18143)]