20157767

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{3457}}^1$

素因数の和:3495

約数の個数: 16

約数和(自身を含む): 24897600

約数和(自身を除く): 4739833

約数列:

[1, 7, 17, 49, 119, 343, 833, 3457, 5831, 24199, 58769, 169393, 411383, 1185751, 2879681, 20157767]

約数ペア:

[(1, 20157767), (7, 2879681), (17, 1185751), (49, 411383), (119, 169393), (343, 58769), (833, 24199), (3457, 5831)]