18240398

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{8209}}^1$

素因数の和:8323

約数の個数: 16

約数和(自身を含む): 30147120

約数和(自身を除く): 11906722

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 8209, 16418, 90299, 180598, 829109, 1658218, 9120199, 18240398]

約数ペア:

[(1, 18240398), (2, 9120199), (11, 1658218), (22, 829109), (101, 180598), (202, 90299), (1111, 16418), (2222, 8209)]