20253779

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1699}}^1$

素因数の和:1850

約数の個数: 16

約数和(自身を含む): 25132800

約数和(自身を除く): 4879021

約数列:

[1, 7, 13, 91, 131, 917, 1699, 1703, 11893, 11921, 22087, 154609, 222569, 1557983, 2893397, 20253779]

約数ペア:

[(1, 20253779), (7, 2893397), (13, 1557983), (91, 222569), (131, 154609), (917, 22087), (1699, 11921), (1703, 11893)]