18392589

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1$

素因数の和:104

約数の個数: 60

約数和(自身を含む): 31533084

約数和(自身を除く): 13140495

約数列:

[1, 3, 9, 17, 19, 27, 37, 51, 57, 81, 111, 153, 171, 323, 333, 361, 459, 513, 629, 703, 969, 999, 1083, 1377, 1539, 1887, 2109, 2907, 2997, 3249, 5661, 6137, 6327, 8721, 9747, 11951, 13357, 16983, 18411, 18981, 26163, 29241, 35853, 40071, 50949, 55233, 56943, 107559, 120213, 165699, 227069, 322677, 360639, 497097, 681207, 968031, 1081917, 2043621, 6130863, 18392589]

約数ペア:

[(1, 18392589), (3, 6130863), (9, 2043621), (17, 1081917), (19, 968031), (27, 681207), (37, 497097), (51, 360639), (57, 322677), (81, 227069), (111, 165699), (153, 120213), (171, 107559), (323, 56943), (333, 55233), (361, 50949), (459, 40071), (513, 35853), (629, 29241), (703, 26163), (969, 18981), (999, 18411), (1083, 16983), (1377, 13357), (1539, 11951), (1887, 9747), (2109, 8721), (2907, 6327), (2997, 6137), (3249, 5661)]