19491489

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:334

約数の個数: 32

約数和(自身を含む): 30096000

約数和(自身を除く): 10604511

約数列:

[1, 3, 9, 27, 37, 109, 111, 179, 327, 333, 537, 981, 999, 1611, 2943, 4033, 4833, 6623, 12099, 19511, 19869, 36297, 58533, 59607, 108891, 175599, 178821, 526797, 721907, 2165721, 6497163, 19491489]

約数ペア:

[(1, 19491489), (3, 6497163), (9, 2165721), (27, 721907), (37, 526797), (109, 178821), (111, 175599), (179, 108891), (327, 59607), (333, 58533), (537, 36297), (981, 19869), (999, 19511), (1611, 12099), (2943, 6623), (4033, 4833)]