980721

素因数分解:

$3^3\times 7^1\times {\mathrm{5189}}^1$

素因数の和:5205

約数の個数: 16

約数和(自身を含む): 1660800

約数和(自身を除く): 680079

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 5189, 15567, 36323, 46701, 108969, 140103, 326907, 980721]

約数ペア:

[(1, 980721), (3, 326907), (7, 140103), (9, 108969), (21, 46701), (27, 36323), (63, 15567), (189, 5189)]