20179276

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{29851}}^1$

素因数の和:29881

約数の個数: 18

約数和(自身を含む): 38240412

約数和(自身を除く): 18061136

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 29851, 59702, 119404, 388063, 776126, 1552252, 5044819, 10089638, 20179276]

約数ペア:

[(1, 20179276), (2, 10089638), (4, 5044819), (13, 1552252), (26, 776126), (52, 388063), (169, 119404), (338, 59702), (676, 29851)]