20865465

素因数分解:

$3^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1217}}^1$

素因数の和:1358

約数の個数: 32

約数和(自身を含む): 37416960

約数和(自身を除く): 16551495

約数列:

[1, 3, 5, 9, 15, 27, 45, 127, 135, 381, 635, 1143, 1217, 1905, 3429, 3651, 5715, 6085, 10953, 17145, 18255, 32859, 54765, 154559, 164295, 463677, 772795, 1391031, 2318385, 4173093, 6955155, 20865465]

約数ペア:

[(1, 20865465), (3, 6955155), (5, 4173093), (9, 2318385), (15, 1391031), (27, 772795), (45, 463677), (127, 164295), (135, 154559), (381, 54765), (635, 32859), (1143, 18255), (1217, 17145), (1905, 10953), (3429, 6085), (3651, 5715)]