18729666

素因数分解:

$2^1\times 3^2\times {\mathrm{397}}^1\times {\mathrm{2621}}^1$

素因数の和:3026

約数の個数: 24

約数和(自身を含む): 40698684

約数和(自身を除く): 21969018

約数列:

[1, 2, 3, 6, 9, 18, 397, 794, 1191, 2382, 2621, 3573, 5242, 7146, 7863, 15726, 23589, 47178, 1040537, 2081074, 3121611, 6243222, 9364833, 18729666]

約数ペア:

[(1, 18729666), (2, 9364833), (3, 6243222), (6, 3121611), (9, 2081074), (18, 1040537), (397, 47178), (794, 23589), (1191, 15726), (2382, 7863), (2621, 7146), (3573, 5242)]