20166920487

素因数分解:

$3^4\times 7^1\times {\mathrm{35567761}}^1$

素因数の和:35567780

約数の個数: 20

約数和(自身を含む): 34429593616

約数和(自身を除く): 14262673129

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 35567761, 106703283, 248974327, 320109849, 746922981, 960329547, 2240768943, 2880988641, 6722306829, 20166920487]

約数ペア:

[(1, 20166920487), (3, 6722306829), (7, 2880988641), (9, 2240768943), (21, 960329547), (27, 746922981), (63, 320109849), (81, 248974327), (189, 106703283), (567, 35567761)]