21022281

素因数分解:

$3^3\times 7^1\times {\mathrm{111229}}^1$

素因数の和:111245

約数の個数: 16

約数和(自身を含む): 35593600

約数和(自身を除く): 14571319

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 111229, 333687, 778603, 1001061, 2335809, 3003183, 7007427, 21022281]

約数ペア:

[(1, 21022281), (3, 7007427), (7, 3003183), (9, 2335809), (21, 1001061), (27, 778603), (63, 333687), (189, 111229)]