20691359

素因数分解:

${\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{509}}^1$

素因数の和:634

約数の個数: 16

約数和(自身を含む): 23133600

約数和(自身を除く): 2442241

約数列:

[1, 13, 53, 59, 509, 689, 767, 3127, 6617, 26977, 30031, 40651, 350701, 390403, 1591643, 20691359]

約数ペア:

[(1, 20691359), (13, 1591643), (53, 390403), (59, 350701), (509, 40651), (689, 30031), (767, 26977), (3127, 6617)]