20360871

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{431}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 30663360

約数和(自身を除く): 10302489

約数列:

[1, 3, 9, 29, 87, 181, 261, 431, 543, 1293, 1629, 3879, 5249, 12499, 15747, 37497, 47241, 78011, 112491, 234033, 702099, 2262319, 6786957, 20360871]

約数ペア:

[(1, 20360871), (3, 6786957), (9, 2262319), (29, 702099), (87, 234033), (181, 112491), (261, 78011), (431, 47241), (543, 37497), (1293, 15747), (1629, 12499), (3879, 5249)]