20628765

素因数分解:

$3^2\times 5^1\times {\mathrm{373}}^1\times {\mathrm{1229}}^1$

素因数の和:1613

約数の個数: 24

約数和(自身を含む): 35881560

約数和(自身を除く): 15252795

約数列:

[1, 3, 5, 9, 15, 45, 373, 1119, 1229, 1865, 3357, 3687, 5595, 6145, 11061, 16785, 18435, 55305, 458417, 1375251, 2292085, 4125753, 6876255, 20628765]

約数ペア:

[(1, 20628765), (3, 6876255), (5, 4125753), (9, 2292085), (15, 1375251), (45, 458417), (373, 55305), (1119, 18435), (1229, 16785), (1865, 11061), (3357, 6145), (3687, 5595)]