18439870

素因数分解:

$2^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{8269}}^1$

素因数の和:8499

約数の個数: 16

約数和(自身を含む): 33344640

約数和(自身を除く): 14904770

約数列:

[1, 2, 5, 10, 223, 446, 1115, 2230, 8269, 16538, 41345, 82690, 1843987, 3687974, 9219935, 18439870]

約数ペア:

[(1, 18439870), (2, 9219935), (5, 3687974), (10, 1843987), (223, 82690), (446, 41345), (1115, 16538), (2230, 8269)]