15561189

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1777}}^1$

素因数の和:1929

約数の個数: 24

約数和(自身を含む): 25887680

約数和(自身を除く): 10326491

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 1777, 2919, 5331, 8757, 12439, 15993, 37317, 111951, 247003, 741009, 1729021, 2223027, 5187063, 15561189]

約数ペア:

[(1, 15561189), (3, 5187063), (7, 2223027), (9, 1729021), (21, 741009), (63, 247003), (139, 111951), (417, 37317), (973, 15993), (1251, 12439), (1777, 8757), (2919, 5331)]