20698321

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{2179}}^1$

素因数の和:2268

約数の個数: 16

約数和(自身を含む): 25113600

約数和(自身を除く): 4415279

約数列:

[1, 7, 23, 59, 161, 413, 1357, 2179, 9499, 15253, 50117, 128561, 350819, 899927, 2956903, 20698321]

約数ペア:

[(1, 20698321), (7, 2956903), (23, 899927), (59, 350819), (161, 128561), (413, 50117), (1357, 15253), (2179, 9499)]