20697313

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{787}}^1$

素因数の和:841

約数の個数: 24

約数和(自身を含む): 27094592

約数和(自身を除く): 6397279

約数列:

[1, 7, 13, 17, 91, 119, 221, 289, 787, 1547, 2023, 3757, 5509, 10231, 13379, 26299, 71617, 93653, 173927, 227443, 1217489, 1592101, 2956759, 20697313]

約数ペア:

[(1, 20697313), (7, 2956759), (13, 1592101), (17, 1217489), (91, 227443), (119, 173927), (221, 93653), (289, 71617), (787, 26299), (1547, 13379), (2023, 10231), (3757, 5509)]