21570612

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{523}}^1$

素因数の和:1028

約数の個数: 48

約数和(自身を含む): 57748992

約数和(自身を除く): 36178380

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 491, 523, 982, 1046, 1473, 1569, 1964, 2092, 2946, 3138, 3437, 3661, 5892, 6276, 6874, 7322, 10311, 10983, 13748, 14644, 20622, 21966, 41244, 43932, 256793, 513586, 770379, 1027172, 1540758, 1797551, 3081516, 3595102, 5392653, 7190204, 10785306, 21570612]

約数ペア:

[(1, 21570612), (2, 10785306), (3, 7190204), (4, 5392653), (6, 3595102), (7, 3081516), (12, 1797551), (14, 1540758), (21, 1027172), (28, 770379), (42, 513586), (84, 256793), (491, 43932), (523, 41244), (982, 21966), (1046, 20622), (1473, 14644), (1569, 13748), (1964, 10983), (2092, 10311), (2946, 7322), (3138, 6874), (3437, 6276), (3661, 5892)]