21759060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2609}}^1$

素因数の和:2760

約数の個数: 48

約数和(自身を含む): 61387200

約数和(自身を除く): 39628140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 139, 278, 417, 556, 695, 834, 1390, 1668, 2085, 2609, 2780, 4170, 5218, 7827, 8340, 10436, 13045, 15654, 26090, 31308, 39135, 52180, 78270, 156540, 362651, 725302, 1087953, 1450604, 1813255, 2175906, 3626510, 4351812, 5439765, 7253020, 10879530, 21759060]

約数ペア:

[(1, 21759060), (2, 10879530), (3, 7253020), (4, 5439765), (5, 4351812), (6, 3626510), (10, 2175906), (12, 1813255), (15, 1450604), (20, 1087953), (30, 725302), (60, 362651), (139, 156540), (278, 78270), (417, 52180), (556, 39135), (695, 31308), (834, 26090), (1390, 15654), (1668, 13045), (2085, 10436), (2609, 8340), (2780, 7827), (4170, 5218)]