20869119

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{557}}^1$

素因数の和:767

約数の個数: 24

約数和(自身を含む): 31685472

約数和(自身を除く): 10816353

約数列:

[1, 3, 9, 23, 69, 181, 207, 543, 557, 1629, 1671, 4163, 5013, 12489, 12811, 37467, 38433, 100817, 115299, 302451, 907353, 2318791, 6956373, 20869119]

約数ペア:

[(1, 20869119), (3, 6956373), (9, 2318791), (23, 907353), (69, 302451), (181, 115299), (207, 100817), (543, 38433), (557, 37467), (1629, 12811), (1671, 12489), (4163, 5013)]