21240312

素因数分解:

$2^3\times 3^1\times {\mathrm{139}}^1\times {\mathrm{6367}}^1$

素因数の和:6515

約数の個数: 32

約数和(自身を含む): 53491200

約数和(自身を除く): 32250888

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 139, 278, 417, 556, 834, 1112, 1668, 3336, 6367, 12734, 19101, 25468, 38202, 50936, 76404, 152808, 885013, 1770026, 2655039, 3540052, 5310078, 7080104, 10620156, 21240312]

約数ペア:

[(1, 21240312), (2, 10620156), (3, 7080104), (4, 5310078), (6, 3540052), (8, 2655039), (12, 1770026), (24, 885013), (139, 152808), (278, 76404), (417, 50936), (556, 38202), (834, 25468), (1112, 19101), (1668, 12734), (3336, 6367)]