20089881

素因数分解:

$3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3583}}^1$

素因数の和:3685

約数の個数: 24

約数和(自身を含む): 33546240

約数和(自身を除く): 13456359

約数列:

[1, 3, 7, 9, 21, 63, 89, 267, 623, 801, 1869, 3583, 5607, 10749, 25081, 32247, 75243, 225729, 318887, 956661, 2232209, 2869983, 6696627, 20089881]

約数ペア:

[(1, 20089881), (3, 6696627), (7, 2869983), (9, 2232209), (21, 956661), (63, 318887), (89, 225729), (267, 75243), (623, 32247), (801, 25081), (1869, 10749), (3583, 5607)]