77181279

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 119938560

約数和(自身を除く): 42757281

約数列:

[1, 3, 7, 21, 137, 139, 193, 411, 417, 579, 959, 973, 1351, 2877, 2919, 4053, 19043, 26441, 26827, 57129, 79323, 80481, 133301, 185087, 187789, 399903, 555261, 563367, 3675299, 11025897, 25727093, 77181279]

約数ペア:

[(1, 77181279), (3, 25727093), (7, 11025897), (21, 3675299), (137, 563367), (139, 555261), (193, 399903), (411, 187789), (417, 185087), (579, 133301), (959, 80481), (973, 79323), (1351, 57129), (2877, 26827), (2919, 26441), (4053, 19043)]