20920823

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{11813}}^1$

素因数の和:11854

約数の個数: 16

約数和(自身を含む): 27219456

約数和(自身を除く): 6298633

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 11813, 82691, 129943, 271699, 909601, 1901893, 2988689, 20920823]

約数ペア:

[(1, 20920823), (7, 2988689), (11, 1901893), (23, 909601), (77, 271699), (161, 129943), (253, 82691), (1771, 11813)]