78247659

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{12379}}^1$

素因数の和:12439

約数の個数: 24

約数和(自身を含む): 124196160

約数和(自身を除く): 45948501

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 6321, 12379, 37137, 86653, 259959, 532297, 606571, 1596891, 1819713, 3726079, 11178237, 26082553, 78247659]

約数ペア:

[(1, 78247659), (3, 26082553), (7, 11178237), (21, 3726079), (43, 1819713), (49, 1596891), (129, 606571), (147, 532297), (301, 259959), (903, 86653), (2107, 37137), (6321, 12379)]