21215652

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{673}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 51633792

約数和(自身を除く): 30418140

約数列:

[1, 2, 3, 4, 6, 12, 37, 71, 74, 111, 142, 148, 213, 222, 284, 426, 444, 673, 852, 1346, 2019, 2627, 2692, 4038, 5254, 7881, 8076, 10508, 15762, 24901, 31524, 47783, 49802, 74703, 95566, 99604, 143349, 149406, 191132, 286698, 298812, 573396, 1767971, 3535942, 5303913, 7071884, 10607826, 21215652]

約数ペア:

[(1, 21215652), (2, 10607826), (3, 7071884), (4, 5303913), (6, 3535942), (12, 1767971), (37, 573396), (71, 298812), (74, 286698), (111, 191132), (142, 149406), (148, 143349), (213, 99604), (222, 95566), (284, 74703), (426, 49802), (444, 47783), (673, 31524), (852, 24901), (1346, 15762), (2019, 10508), (2627, 8076), (2692, 7881), (4038, 5254)]