18464679

素因数分解:

$3^4\times {\mathrm{257}}^1\times {\mathrm{887}}^1$

素因数の和:1156

約数の個数: 20

約数和(自身を含む): 27721584

約数和(自身を除く): 9256905

約数列:

[1, 3, 9, 27, 81, 257, 771, 887, 2313, 2661, 6939, 7983, 20817, 23949, 71847, 227959, 683877, 2051631, 6154893, 18464679]

約数ペア:

[(1, 18464679), (3, 6154893), (9, 2051631), (27, 683877), (81, 227959), (257, 71847), (771, 23949), (887, 20817), (2313, 7983), (2661, 6939)]