641749473

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{881}}^1$

素因数の和:956

約数の個数: 60

約数和(自身を含む): 1062310788

約数和(自身を除く): 420561315

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 81, 153, 207, 391, 459, 529, 621, 881, 1173, 1377, 1587, 1863, 2643, 3519, 4761, 7929, 8993, 10557, 14283, 14977, 20263, 23787, 26979, 31671, 42849, 44931, 60789, 71361, 80937, 134793, 182367, 242811, 344471, 404379, 466049, 547101, 728433, 1033413, 1213137, 1398147, 1641303, 3100239, 4194441, 7922833, 9300717, 12583323, 23768499, 27902151, 37749969, 71305497, 213916491, 641749473]

約数ペア:

[(1, 641749473), (3, 213916491), (9, 71305497), (17, 37749969), (23, 27902151), (27, 23768499), (51, 12583323), (69, 9300717), (81, 7922833), (153, 4194441), (207, 3100239), (391, 1641303), (459, 1398147), (529, 1213137), (621, 1033413), (881, 728433), (1173, 547101), (1377, 466049), (1587, 404379), (1863, 344471), (2643, 242811), (3519, 182367), (4761, 134793), (7929, 80937), (8993, 71361), (10557, 60789), (14283, 44931), (14977, 42849), (20263, 31671), (23787, 26979)]