20653423921

素因数分解:

${\mathrm{13}}^2\times {\mathrm{409}}^1\times {\mathrm{298801}}^1$

素因数の和:299236

約数の個数: 12

約数和(自身を含む): 22419114060

約数和(自身を除く): 1765690139

約数列:

[1, 13, 169, 409, 5317, 69121, 298801, 3884413, 50497369, 122209609, 1588724917, 20653423921]

約数ペア:

[(1, 20653423921), (13, 1588724917), (169, 122209609), (409, 50497369), (5317, 3884413), (69121, 298801)]