647254017

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{24239}}^1$

素因数の和:24314

約数の個数: 32

約数和(自身を含む): 1023897600

約数和(自身を除く): 376643583

約数列:

[1, 3, 9, 23, 27, 43, 69, 129, 207, 387, 621, 989, 1161, 2967, 8901, 24239, 26703, 72717, 218151, 557497, 654453, 1042277, 1672491, 3126831, 5017473, 9380493, 15052419, 23972371, 28141479, 71917113, 215751339, 647254017]

約数ペア:

[(1, 647254017), (3, 215751339), (9, 71917113), (23, 28141479), (27, 23972371), (43, 15052419), (69, 9380493), (129, 5017473), (207, 3126831), (387, 1672491), (621, 1042277), (989, 654453), (1161, 557497), (2967, 218151), (8901, 72717), (24239, 26703)]