87778791

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{137369}}^1$

素因数の和:137446

約数の個数: 12

約数和(自身を含む): 128578320

約数和(自身を除く): 40799529

約数列:

[1, 3, 9, 71, 213, 639, 137369, 412107, 1236321, 9753199, 29259597, 87778791]

約数ペア:

[(1, 87778791), (3, 29259597), (9, 9753199), (71, 1236321), (213, 412107), (639, 137369)]