19668733

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{241}}^1$

素因数の和:468

約数の個数: 16

約数和(自身を含む): 22999680

約数和(自身を除く): 3330947

約数列:

[1, 7, 89, 131, 241, 623, 917, 1687, 11659, 21449, 31571, 81613, 150143, 220997, 2809819, 19668733]

約数ペア:

[(1, 19668733), (7, 2809819), (89, 220997), (131, 150143), (241, 81613), (623, 31571), (917, 21449), (1687, 11659)]