20211771827

素因数分解:

${\mathrm{13}}^2\times {\mathrm{79}}^2\times {\mathrm{19163}}^1$

素因数の和:19347

約数の個数: 18

約数和(自身を含む): 22167822852

約数和(自身を除く): 1956051025

約数列:

[1, 13, 79, 169, 1027, 6241, 13351, 19163, 81133, 249119, 1054729, 1513877, 3238547, 19680401, 119596283, 255845213, 1554751679, 20211771827]

約数ペア:

[(1, 20211771827), (13, 1554751679), (79, 255845213), (169, 119596283), (1027, 19680401), (6241, 3238547), (13351, 1513877), (19163, 1054729), (81133, 249119)]