20065131

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{409}}^1$

素因数の和:520

約数の個数: 32

約数和(自身を含む): 31488000

約数和(自身を除く): 11422869

約数列:

[1, 3, 9, 23, 27, 69, 79, 207, 237, 409, 621, 711, 1227, 1817, 2133, 3681, 5451, 9407, 11043, 16353, 28221, 32311, 49059, 84663, 96933, 253989, 290799, 743153, 872397, 2229459, 6688377, 20065131]

約数ペア:

[(1, 20065131), (3, 6688377), (9, 2229459), (23, 872397), (27, 743153), (69, 290799), (79, 253989), (207, 96933), (237, 84663), (409, 49059), (621, 32311), (711, 28221), (1227, 16353), (1817, 11043), (2133, 9407), (3681, 5451)]