18628245

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3209}}^1$

素因数の和:3266

約数の個数: 32

約数和(自身を含む): 33897600

約数和(自身を除く): 15269355

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 3209, 5805, 9627, 16045, 28881, 48135, 86643, 137987, 144405, 413961, 433215, 689935, 1241883, 2069805, 3725649, 6209415, 18628245]

約数ペア:

[(1, 18628245), (3, 6209415), (5, 3725649), (9, 2069805), (15, 1241883), (27, 689935), (43, 433215), (45, 413961), (129, 144405), (135, 137987), (215, 86643), (387, 48135), (645, 28881), (1161, 16045), (1935, 9627), (3209, 5805)]