18028690

素因数分解:

$2^1\times 5^1\times {\mathrm{911}}^1\times {\mathrm{1979}}^1$

素因数の和:2897

約数の個数: 16

約数和(自身を含む): 32503680

約数和(自身を除く): 14474990

約数列:

[1, 2, 5, 10, 911, 1822, 1979, 3958, 4555, 9110, 9895, 19790, 1802869, 3605738, 9014345, 18028690]

約数ペア:

[(1, 18028690), (2, 9014345), (5, 3605738), (10, 1802869), (911, 19790), (1822, 9895), (1979, 9110), (3958, 4555)]