18577489

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{313}}^1$

素因数の和:520

約数の個数: 16

約数和(自身を含む): 21804160

約数和(自身を除く): 3226671

約数列:

[1, 7, 61, 139, 313, 427, 973, 2191, 8479, 19093, 43507, 59353, 133651, 304549, 2653927, 18577489]

約数ペア:

[(1, 18577489), (7, 2653927), (61, 304549), (139, 133651), (313, 59353), (427, 43507), (973, 19093), (2191, 8479)]