17790479

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:327

約数の個数: 24

約数和(自身を含む): 22120560

約数和(自身を除く): 4330081

約数列:

[1, 7, 19, 49, 97, 133, 197, 679, 931, 1379, 1843, 3743, 4753, 9653, 12901, 19109, 26201, 90307, 133763, 183407, 363071, 936341, 2541497, 17790479]

約数ペア:

[(1, 17790479), (7, 2541497), (19, 936341), (49, 363071), (97, 183407), (133, 133763), (197, 90307), (679, 26201), (931, 19109), (1379, 12901), (1843, 9653), (3743, 4753)]