18038828

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3343}}^1$

素因数の和:3437

約数の個数: 24

約数和(自身を含む): 33707520

約数和(自身を除く): 15668692

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 284, 1349, 2698, 3343, 5396, 6686, 13372, 63517, 127034, 237353, 254068, 474706, 949412, 4509707, 9019414, 18038828]

約数ペア:

[(1, 18038828), (2, 9019414), (4, 4509707), (19, 949412), (38, 474706), (71, 254068), (76, 237353), (142, 127034), (284, 63517), (1349, 13372), (2698, 6686), (3343, 5396)]