20860021

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{5591}}^1$

素因数の和:5652

約数の個数: 16

約数和(自身を含む): 26304768

約数和(自身を除く): 5444747

約数列:

[1, 7, 13, 41, 91, 287, 533, 3731, 5591, 39137, 72683, 229231, 508781, 1604617, 2980003, 20860021]

約数ペア:

[(1, 20860021), (7, 2980003), (13, 1604617), (41, 508781), (91, 229231), (287, 72683), (533, 39137), (3731, 5591)]