18310187

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{313}}^1$

素因数の和:518

約数の個数: 16

約数和(自身を含む): 21492672

約数和(自身を除く): 3182485

約数列:

[1, 7, 61, 137, 313, 427, 959, 2191, 8357, 19093, 42881, 58499, 133651, 300167, 2615741, 18310187]

約数ペア:

[(1, 18310187), (7, 2615741), (61, 300167), (137, 133651), (313, 58499), (427, 42881), (959, 19093), (2191, 8357)]