201813213

素因数分解:

$3^1\times 7^2\times {\mathrm{1372879}}^1$

素因数の和:1372896

約数の個数: 12

約数和(自身を含む): 313016640

約数和(自身を除く): 111203427

約数列:

[1, 3, 7, 21, 49, 147, 1372879, 4118637, 9610153, 28830459, 67271071, 201813213]

約数ペア:

[(1, 201813213), (3, 67271071), (7, 28830459), (21, 9610153), (49, 4118637), (147, 1372879)]