978489

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:221

約数の個数: 24

約数和(自身を含む): 1535040

約数和(自身を除く): 556551

約数列:

[1, 3, 9, 23, 29, 69, 87, 163, 207, 261, 489, 667, 1467, 2001, 3749, 4727, 6003, 11247, 14181, 33741, 42543, 108721, 326163, 978489]

約数ペア:

[(1, 978489), (3, 326163), (9, 108721), (23, 42543), (29, 33741), (69, 14181), (87, 11247), (163, 6003), (207, 4727), (261, 3749), (489, 2001), (667, 1467)]