21244052

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 41287680

約数和(自身を除く): 20043628

約数列:

[1, 2, 4, 19, 31, 38, 62, 71, 76, 124, 127, 142, 254, 284, 508, 589, 1178, 1349, 2201, 2356, 2413, 2698, 3937, 4402, 4826, 5396, 7874, 8804, 9017, 9652, 15748, 18034, 36068, 41819, 74803, 83638, 149606, 167276, 171323, 279527, 299212, 342646, 559054, 685292, 1118108, 5311013, 10622026, 21244052]

約数ペア:

[(1, 21244052), (2, 10622026), (4, 5311013), (19, 1118108), (31, 685292), (38, 559054), (62, 342646), (71, 299212), (76, 279527), (124, 171323), (127, 167276), (142, 149606), (254, 83638), (284, 74803), (508, 41819), (589, 36068), (1178, 18034), (1349, 15748), (2201, 9652), (2356, 9017), (2413, 8804), (2698, 7874), (3937, 5396), (4402, 4826)]