20215422721

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4451}}^1\times {\mathrm{20551}}^1$

素因数の和:25032

約数の個数: 16

約数和(自身を含む): 23057371008

約数和(自身を除く): 2841948287

約数列:

[1, 13, 17, 221, 4451, 20551, 57863, 75667, 267163, 349367, 983671, 4541771, 91472501, 1189142513, 1555032517, 20215422721]

約数ペア:

[(1, 20215422721), (13, 1555032517), (17, 1189142513), (221, 91472501), (4451, 4541771), (20551, 983671), (57863, 349367), (75667, 267163)]