18696890

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{13451}}^1$

素因数の和:13597

約数の個数: 16

約数和(自身を含む): 33899040

約数和(自身を除く): 15202150

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 13451, 26902, 67255, 134510, 1869689, 3739378, 9348445, 18696890]

約数ペア:

[(1, 18696890), (2, 9348445), (5, 3739378), (10, 1869689), (139, 134510), (278, 67255), (695, 26902), (1390, 13451)]