30490257

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{39241}}^1$

素因数の和:39288

約数の個数: 16

約数和(自身を含む): 47718272

約数和(自身を除く): 17228015

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 39241, 117723, 274687, 824061, 1451917, 4355751, 10163419, 30490257]

約数ペア:

[(1, 30490257), (3, 10163419), (7, 4355751), (21, 1451917), (37, 824061), (111, 274687), (259, 117723), (777, 39241)]