201665781

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{1069}}^1$

素因数の和:1235

約数の個数: 40

約数和(自身を含む): 321603480

約数和(自身を除く): 119937699

約数列:

[1, 3, 9, 17, 27, 51, 81, 137, 153, 411, 459, 1069, 1233, 1377, 2329, 3207, 3699, 6987, 9621, 11097, 18173, 20961, 28863, 54519, 62883, 86589, 146453, 163557, 188649, 439359, 490671, 1318077, 1472013, 2489701, 3954231, 7469103, 11862693, 22407309, 67221927, 201665781]

約数ペア:

[(1, 201665781), (3, 67221927), (9, 22407309), (17, 11862693), (27, 7469103), (51, 3954231), (81, 2489701), (137, 1472013), (153, 1318077), (411, 490671), (459, 439359), (1069, 188649), (1233, 163557), (1377, 146453), (2329, 86589), (3207, 62883), (3699, 54519), (6987, 28863), (9621, 20961), (11097, 18173)]