247411557

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{18587}}^1$

素因数の和:18642

約数の個数: 32

約数和(自身を含む): 401500800

約数和(自身を除く): 154089243

約数列:

[1, 3, 9, 17, 27, 29, 51, 87, 153, 261, 459, 493, 783, 1479, 4437, 13311, 18587, 55761, 167283, 315979, 501849, 539023, 947937, 1617069, 2843811, 4851207, 8531433, 9163391, 14553621, 27490173, 82470519, 247411557]

約数ペア:

[(1, 247411557), (3, 82470519), (9, 27490173), (17, 14553621), (27, 9163391), (29, 8531433), (51, 4851207), (87, 2843811), (153, 1617069), (261, 947937), (459, 539023), (493, 501849), (783, 315979), (1479, 167283), (4437, 55761), (13311, 18587)]