18838143

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:328

約数の個数: 32

約数和(自身を含む): 29092800

約数和(自身を除く): 10254657

約数列:

[1, 3, 9, 27, 37, 109, 111, 173, 327, 333, 519, 981, 999, 1557, 2943, 4033, 4671, 6401, 12099, 18857, 19203, 36297, 56571, 57609, 108891, 169713, 172827, 509139, 697709, 2093127, 6279381, 18838143]

約数ペア:

[(1, 18838143), (3, 6279381), (9, 2093127), (27, 697709), (37, 509139), (109, 172827), (111, 169713), (173, 108891), (327, 57609), (333, 56571), (519, 36297), (981, 19203), (999, 18857), (1557, 12099), (2943, 6401), (4033, 4671)]