21693217

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{1069}}^1$

素因数の和:1312

約数の個数: 16

約数和(自身を含む): 26844160

約数和(自身を除く): 5150943

約数列:

[1, 7, 13, 91, 223, 1069, 1561, 2899, 7483, 13897, 20293, 97279, 238387, 1668709, 3099031, 21693217]

約数ペア:

[(1, 21693217), (7, 3099031), (13, 1668709), (91, 238387), (223, 97279), (1069, 20293), (1561, 13897), (2899, 7483)]