18729238

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{8429}}^1$

素因数の和:8543

約数の個数: 16

約数和(自身を含む): 30954960

約数和(自身を除く): 12225722

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 8429, 16858, 92719, 185438, 851329, 1702658, 9364619, 18729238]

約数ペア:

[(1, 18729238), (2, 9364619), (11, 1702658), (22, 851329), (101, 185438), (202, 92719), (1111, 16858), (2222, 8429)]