78430221

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{251}}^1$

素因数の和:494

約数の個数: 32

約数和(自身を含む): 119024640

約数和(自身を除く): 40594419

約数列:

[1, 3, 9, 27, 71, 163, 213, 251, 489, 639, 753, 1467, 1917, 2259, 4401, 6777, 11573, 17821, 34719, 40913, 53463, 104157, 122739, 160389, 312471, 368217, 481167, 1104651, 2904823, 8714469, 26143407, 78430221]

約数ペア:

[(1, 78430221), (3, 26143407), (9, 8714469), (27, 2904823), (71, 1104651), (163, 481167), (213, 368217), (251, 312471), (489, 160389), (639, 122739), (753, 104157), (1467, 53463), (1917, 40913), (2259, 34719), (4401, 17821), (6777, 11573)]