17968391

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{313}}^1$

素因数の和:518

約数の個数: 16

約数和(自身を含む): 21100800

約数和(自身を除く): 3132409

約数列:

[1, 7, 59, 139, 313, 413, 973, 2191, 8201, 18467, 43507, 57407, 129269, 304549, 2566913, 17968391]

約数ペア:

[(1, 17968391), (7, 2566913), (59, 304549), (139, 129269), (313, 57407), (413, 43507), (973, 18467), (2191, 8201)]