213879169

素因数分解:

$7^2\times {\mathrm{1531}}^1\times {\mathrm{2851}}^1$

素因数の和:4396

約数の個数: 12

約数和(自身を含む): 249048048

約数和(自身を除く): 35168879

約数列:

[1, 7, 49, 1531, 2851, 10717, 19957, 75019, 139699, 4364881, 30554167, 213879169]

約数ペア:

[(1, 213879169), (7, 30554167), (49, 4364881), (1531, 139699), (2851, 75019), (10717, 19957)]