18920408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{181927}}^1$

素因数の和:181946

約数の個数: 16

約数和(自身を含む): 38204880

約数和(自身を除く): 19284472

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 181927, 363854, 727708, 1455416, 2365051, 4730102, 9460204, 18920408]

約数ペア:

[(1, 18920408), (2, 9460204), (4, 4730102), (8, 2365051), (13, 1455416), (26, 727708), (52, 363854), (104, 181927)]