20840235

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8221}}^1$

素因数の和:8255

約数の個数: 24

約数和(自身を含む): 36111024

約数和(自身を除く): 15270789

約数列:

[1, 3, 5, 13, 15, 39, 65, 169, 195, 507, 845, 2535, 8221, 24663, 41105, 106873, 123315, 320619, 534365, 1389349, 1603095, 4168047, 6946745, 20840235]

約数ペア:

[(1, 20840235), (3, 6946745), (5, 4168047), (13, 1603095), (15, 1389349), (39, 534365), (65, 320619), (169, 123315), (195, 106873), (507, 41105), (845, 24663), (2535, 8221)]