20813684

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{2099}}^1$

素因数の和:2207

約数の個数: 24

約数和(自身を含む): 37984800

約数和(自身を除く): 17171116

約数列:

[1, 2, 4, 37, 67, 74, 134, 148, 268, 2099, 2479, 4198, 4958, 8396, 9916, 77663, 140633, 155326, 281266, 310652, 562532, 5203421, 10406842, 20813684]

約数ペア:

[(1, 20813684), (2, 10406842), (4, 5203421), (37, 562532), (67, 310652), (74, 281266), (134, 155326), (148, 140633), (268, 77663), (2099, 9916), (2479, 8396), (4198, 4958)]