21958655

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{761}}^1$

素因数の和:994

約数の個数: 16

約数和(自身を含む): 27432000

約数和(自身を除く): 5473345

約数列:

[1, 5, 29, 145, 199, 761, 995, 3805, 5771, 22069, 28855, 110345, 151439, 757195, 4391731, 21958655]

約数ペア:

[(1, 21958655), (5, 4391731), (29, 757195), (145, 151439), (199, 110345), (761, 28855), (995, 22069), (3805, 5771)]