20007817821

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{846247}}^1$

素因数の和:846361

約数の個数: 24

約数和(自身を含む): 30099348864

約数和(自身を除く): 10091531043

約数列:

[1, 3, 9, 37, 71, 111, 213, 333, 639, 2627, 7881, 23643, 846247, 2538741, 7616223, 31311139, 60083537, 93933417, 180250611, 281800251, 540751833, 2223090869, 6669272607, 20007817821]

約数ペア:

[(1, 20007817821), (3, 6669272607), (9, 2223090869), (37, 540751833), (71, 281800251), (111, 180250611), (213, 93933417), (333, 60083537), (639, 31311139), (2627, 7616223), (7881, 2538741), (23643, 846247)]