87211257

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{112241}}^1$

素因数の和:112288

約数の個数: 16

約数和(自身を含む): 136486272

約数和(自身を除く): 49275015

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 112241, 336723, 785687, 2357061, 4152917, 12458751, 29070419, 87211257]

約数ペア:

[(1, 87211257), (3, 29070419), (7, 12458751), (21, 4152917), (37, 2357061), (111, 785687), (259, 336723), (777, 112241)]