21000261804

素因数分解:

$2^2\times 3^1\times {\mathrm{10139}}^1\times {\mathrm{172603}}^1$

素因数の和:182749

約数の個数: 24

約数和(自身を含む): 49005727680

約数和(自身を除く): 28005465876

約数列:

[1, 2, 3, 4, 6, 12, 10139, 20278, 30417, 40556, 60834, 121668, 172603, 345206, 517809, 690412, 1035618, 2071236, 1750021817, 3500043634, 5250065451, 7000087268, 10500130902, 21000261804]

約数ペア:

[(1, 21000261804), (2, 10500130902), (3, 7000087268), (4, 5250065451), (6, 3500043634), (12, 1750021817), (10139, 2071236), (20278, 1035618), (30417, 690412), (40556, 517809), (60834, 345206), (121668, 172603)]