20155557

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{1741}}^1$

素因数の和:1988

約数の個数: 16

約数和(自身を含む): 28596672

約数和(自身を除く): 8441115

約数列:

[1, 3, 17, 51, 227, 681, 1741, 3859, 5223, 11577, 29597, 88791, 395207, 1185621, 6718519, 20155557]

約数ペア:

[(1, 20155557), (3, 6718519), (17, 1185621), (51, 395207), (227, 88791), (681, 29597), (1741, 11577), (3859, 5223)]