20187765

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11503}}^1$

素因数の和:11530

約数の個数: 32

約数和(自身を含む): 38653440

約数和(自身を除く): 18465675

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 11503, 34509, 57515, 103527, 149539, 172545, 310581, 448617, 517635, 747695, 1345851, 1552905, 2243085, 4037553, 6729255, 20187765]

約数ペア:

[(1, 20187765), (3, 6729255), (5, 4037553), (9, 2243085), (13, 1552905), (15, 1345851), (27, 747695), (39, 517635), (45, 448617), (65, 310581), (117, 172545), (135, 149539), (195, 103527), (351, 57515), (585, 34509), (1755, 11503)]