21564008

素因数分解:

$2^3\times {\mathrm{151}}^1\times {\mathrm{17851}}^1$

素因数の和:18008

約数の個数: 16

約数和(自身を含む): 40702560

約数和(自身を除く): 19138552

約数列:

[1, 2, 4, 8, 151, 302, 604, 1208, 17851, 35702, 71404, 142808, 2695501, 5391002, 10782004, 21564008]

約数ペア:

[(1, 21564008), (2, 10782004), (4, 5391002), (8, 2695501), (151, 142808), (302, 71404), (604, 35702), (1208, 17851)]