21238974

素因数分解:

$2^1\times 3^2\times {\mathrm{239}}^1\times {\mathrm{4937}}^1$

素因数の和:5184

約数の個数: 24

約数和(自身を含む): 46219680

約数和(自身を除く): 24980706

約数列:

[1, 2, 3, 6, 9, 18, 239, 478, 717, 1434, 2151, 4302, 4937, 9874, 14811, 29622, 44433, 88866, 1179943, 2359886, 3539829, 7079658, 10619487, 21238974]

約数ペア:

[(1, 21238974), (2, 10619487), (3, 7079658), (6, 3539829), (9, 2359886), (18, 1179943), (239, 88866), (478, 44433), (717, 29622), (1434, 14811), (2151, 9874), (4302, 4937)]