21896985

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{132709}}^1$

素因数の和:132728

約数の個数: 16

約数和(自身を含む): 38220480

約数和(自身を除く): 16323495

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 132709, 398127, 663545, 1459799, 1990635, 4379397, 7298995, 21896985]

約数ペア:

[(1, 21896985), (3, 7298995), (5, 4379397), (11, 1990635), (15, 1459799), (33, 663545), (55, 398127), (165, 132709)]