20328217

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{7703}}^1$

素因数の和:7752

約数の個数: 16

約数和(自身を含む): 25885440

約数和(自身を除く): 5557223

約数列:

[1, 7, 13, 29, 91, 203, 377, 2639, 7703, 53921, 100139, 223387, 700973, 1563709, 2904031, 20328217]

約数ペア:

[(1, 20328217), (7, 2904031), (13, 1563709), (29, 700973), (91, 223387), (203, 100139), (377, 53921), (2639, 7703)]