21321495

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12149}}^1$

素因数の和:12176

約数の個数: 32

約数和(自身を含む): 40824000

約数和(自身を除く): 19502505

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 12149, 36447, 60745, 109341, 157937, 182235, 328023, 473811, 546705, 789685, 1421433, 1640115, 2369055, 4264299, 7107165, 21321495]

約数ペア:

[(1, 21321495), (3, 7107165), (5, 4264299), (9, 2369055), (13, 1640115), (15, 1421433), (27, 789685), (39, 546705), (45, 473811), (65, 328023), (117, 182235), (135, 157937), (195, 109341), (351, 60745), (585, 36447), (1755, 12149)]