20842145

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{5351}}^1$

素因数の和:5416

約数の個数: 16

約数和(自身を含む): 26974080

約数和(自身を除く): 6131935

約数列:

[1, 5, 19, 41, 95, 205, 779, 3895, 5351, 26755, 101669, 219391, 508345, 1096955, 4168429, 20842145]

約数ペア:

[(1, 20842145), (5, 4168429), (19, 1096955), (41, 508345), (95, 219391), (205, 101669), (779, 26755), (3895, 5351)]