669777921

素因数分解:

$3^2\times {\mathrm{163}}^2\times {\mathrm{2801}}^1$

素因数の和:3133

約数の個数: 18

約数和(自身を含む): 973776258

約数和(自身を除く): 303998337

約数列:

[1, 3, 9, 163, 489, 1467, 2801, 8403, 25209, 26569, 79707, 239121, 456563, 1369689, 4109067, 74419769, 223259307, 669777921]

約数ペア:

[(1, 669777921), (3, 223259307), (9, 74419769), (163, 4109067), (489, 1369689), (1467, 456563), (2801, 239121), (8403, 79707), (25209, 26569)]