18715906

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{8423}}^1$

素因数の和:8537

約数の個数: 16

約数和(自身を含む): 30932928

約数和(自身を除く): 12217022

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 8423, 16846, 92653, 185306, 850723, 1701446, 9357953, 18715906]

約数ペア:

[(1, 18715906), (2, 9357953), (11, 1701446), (22, 850723), (101, 185306), (202, 92653), (1111, 16846), (2222, 8423)]