81791913

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{13477}}^1$

素因数の和:13521

約数の個数: 24

約数和(自身を含む): 132407872

約数和(自身を除く): 50615959

約数列:

[1, 3, 7, 17, 21, 51, 119, 289, 357, 867, 2023, 6069, 13477, 40431, 94339, 229109, 283017, 687327, 1603763, 3894853, 4811289, 11684559, 27263971, 81791913]

約数ペア:

[(1, 81791913), (3, 27263971), (7, 11684559), (17, 4811289), (21, 3894853), (51, 1603763), (119, 687327), (289, 283017), (357, 229109), (867, 94339), (2023, 40431), (6069, 13477)]