20906055

素因数分解:

$3^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{1213}}^1$

素因数の和:1607

約数の個数: 24

約数和(自身を含む): 36361728

約数和(自身を除く): 15455673

約数列:

[1, 3, 5, 9, 15, 45, 383, 1149, 1213, 1915, 3447, 3639, 5745, 6065, 10917, 17235, 18195, 54585, 464579, 1393737, 2322895, 4181211, 6968685, 20906055]

約数ペア:

[(1, 20906055), (3, 6968685), (5, 4181211), (9, 2322895), (15, 1393737), (45, 464579), (383, 54585), (1149, 18195), (1213, 17235), (1915, 10917), (3447, 6065), (3639, 5745)]