21997635

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{133319}}^1$

素因数の和:133338

約数の個数: 16

約数和(自身を含む): 38396160

約数和(自身を除く): 16398525

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 133319, 399957, 666595, 1466509, 1999785, 4399527, 7332545, 21997635]

約数ペア:

[(1, 21997635), (3, 7332545), (5, 4399527), (11, 1999785), (15, 1466509), (33, 666595), (55, 399957), (165, 133319)]