20115081

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1499}}^1$

素因数の和:1586

約数の個数: 32

約数和(自身を含む): 34560000

約数和(自身を除く): 14444919

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 189, 213, 497, 639, 1491, 1499, 1917, 4473, 4497, 10493, 13419, 13491, 31479, 40473, 94437, 106429, 283311, 319287, 745003, 957861, 2235009, 2873583, 6705027, 20115081]

約数ペア:

[(1, 20115081), (3, 6705027), (7, 2873583), (9, 2235009), (21, 957861), (27, 745003), (63, 319287), (71, 283311), (189, 106429), (213, 94437), (497, 40473), (639, 31479), (1491, 13491), (1499, 13419), (1917, 10493), (4473, 4497)]