21437795

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{1997}}^1$

素因数の和:2134

約数の個数: 16

約数和(自身を含む): 27332640

約数和(自身を除く): 5894845

約数列:

[1, 5, 19, 95, 113, 565, 1997, 2147, 9985, 10735, 37943, 189715, 225661, 1128305, 4287559, 21437795]

約数ペア:

[(1, 21437795), (5, 4287559), (19, 1128305), (95, 225661), (113, 189715), (565, 37943), (1997, 10735), (2147, 9985)]