78617021

素因数分解:

$7^2\times {\mathrm{991}}^1\times {\mathrm{1619}}^1$

素因数の和:2624

約数の個数: 12

約数和(自身を含む): 91601280

約数和(自身を除く): 12984259

約数列:

[1, 7, 49, 991, 1619, 6937, 11333, 48559, 79331, 1604429, 11231003, 78617021]

約数ペア:

[(1, 78617021), (7, 11231003), (49, 1604429), (991, 79331), (1619, 48559), (6937, 11333)]