20178909

素因数分解:

$3^3\times {\mathrm{523}}^1\times {\mathrm{1429}}^1$

素因数の和:1961

約数の個数: 16

約数和(自身を含む): 29972800

約数和(自身を除く): 9793891

約数列:

[1, 3, 9, 27, 523, 1429, 1569, 4287, 4707, 12861, 14121, 38583, 747367, 2242101, 6726303, 20178909]

約数ペア:

[(1, 20178909), (3, 6726303), (9, 2242101), (27, 747367), (523, 38583), (1429, 14121), (1569, 12861), (4287, 4707)]