123520019

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{7331}}^1$

素因数の和:7450

約数の個数: 16

約数和(自身を含む): 147813120

約数和(自身を除く): 24293101

約数列:

[1, 7, 29, 83, 203, 581, 2407, 7331, 16849, 51317, 212599, 608473, 1488193, 4259311, 17645717, 123520019]

約数ペア:

[(1, 123520019), (7, 17645717), (29, 4259311), (83, 1488193), (203, 608473), (581, 212599), (2407, 51317), (7331, 16849)]