21048020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{150343}}^1$

素因数の和:150359

約数の個数: 24

約数和(自身を含む): 50515584

約数和(自身を除く): 29467564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 150343, 300686, 601372, 751715, 1052401, 1503430, 2104802, 3006860, 4209604, 5262005, 10524010, 21048020]

約数ペア:

[(1, 21048020), (2, 10524010), (4, 5262005), (5, 4209604), (7, 3006860), (10, 2104802), (14, 1503430), (20, 1052401), (28, 751715), (35, 601372), (70, 300686), (140, 150343)]