21055855

素因数分解:

$5^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1\times {\mathrm{449}}^1$

素因数の和:650

約数の個数: 16

約数和(自身を含む): 25855200

約数和(自身を除く): 4799345

約数列:

[1, 5, 83, 113, 415, 449, 565, 2245, 9379, 37267, 46895, 50737, 186335, 253685, 4211171, 21055855]

約数ペア:

[(1, 21055855), (5, 4211171), (83, 253685), (113, 186335), (415, 50737), (449, 46895), (565, 37267), (2245, 9379)]