18636615

素因数分解:

$3^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1087}}^1$

素因数の和:1228

約数の個数: 32

約数和(自身を含む): 33423360

約数和(自身を除く): 14786745

約数列:

[1, 3, 5, 9, 15, 27, 45, 127, 135, 381, 635, 1087, 1143, 1905, 3261, 3429, 5435, 5715, 9783, 16305, 17145, 29349, 48915, 138049, 146745, 414147, 690245, 1242441, 2070735, 3727323, 6212205, 18636615]

約数ペア:

[(1, 18636615), (3, 6212205), (5, 3727323), (9, 2070735), (15, 1242441), (27, 690245), (45, 414147), (127, 146745), (135, 138049), (381, 48915), (635, 29349), (1087, 17145), (1143, 16305), (1905, 9783), (3261, 5715), (3429, 5435)]