21489291291

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{1635037}}^1$

素因数の和:1635390

約数の個数: 16

約数和(自身を含む): 30947999264

約数和(自身を除く): 9458707973

約数列:

[1, 3, 13, 39, 337, 1011, 4381, 13143, 1635037, 4905111, 21255481, 63766443, 551007469, 1653022407, 7163097097, 21489291291]

約数ペア:

[(1, 21489291291), (3, 7163097097), (13, 1653022407), (39, 551007469), (337, 63766443), (1011, 21255481), (4381, 4905111), (13143, 1635037)]