20215155

素因数分解:

$3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{6841}}^1$

素因数の和:7046

約数の個数: 16

約数和(自身を含む): 32513184

約数和(自身を除く): 12298029

約数列:

[1, 3, 5, 15, 197, 591, 985, 2955, 6841, 20523, 34205, 102615, 1347677, 4043031, 6738385, 20215155]

約数ペア:

[(1, 20215155), (3, 6738385), (5, 4043031), (15, 1347677), (197, 102615), (591, 34205), (985, 20523), (2955, 6841)]