20616705

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14779}}^1$

素因数の和:14821

約数の個数: 24

約数和(自身を含む): 36890880

約数和(自身を除く): 16274175

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 14779, 44337, 73895, 133011, 221685, 458149, 665055, 1374447, 2290745, 4123341, 6872235, 20616705]

約数ペア:

[(1, 20616705), (3, 6872235), (5, 4123341), (9, 2290745), (15, 1374447), (31, 665055), (45, 458149), (93, 221685), (155, 133011), (279, 73895), (465, 44337), (1395, 14779)]