21885740

素因数分解:

$2^2\times 5^1\times {\mathrm{769}}^1\times {\mathrm{1423}}^1$

素因数の和:2201

約数の個数: 24

約数和(自身を含む): 46052160

約数和(自身を除く): 24166420

約数列:

[1, 2, 4, 5, 10, 20, 769, 1423, 1538, 2846, 3076, 3845, 5692, 7115, 7690, 14230, 15380, 28460, 1094287, 2188574, 4377148, 5471435, 10942870, 21885740]

約数ペア:

[(1, 21885740), (2, 10942870), (4, 5471435), (5, 4377148), (10, 2188574), (20, 1094287), (769, 28460), (1423, 15380), (1538, 14230), (2846, 7690), (3076, 7115), (3845, 5692)]