21575196

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:471

約数の個数: 72

約数和(自身を含む): 57867264

約数和(自身を除く): 36292068

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 71, 92, 138, 142, 207, 213, 276, 284, 367, 414, 426, 639, 734, 828, 852, 1101, 1278, 1468, 1633, 2202, 2556, 3266, 3303, 4404, 4899, 6532, 6606, 8441, 9798, 13212, 14697, 16882, 19596, 25323, 26057, 29394, 33764, 50646, 52114, 58788, 75969, 78171, 101292, 104228, 151938, 156342, 234513, 303876, 312684, 469026, 599311, 938052, 1198622, 1797933, 2397244, 3595866, 5393799, 7191732, 10787598, 21575196]

約数ペア:

[(1, 21575196), (2, 10787598), (3, 7191732), (4, 5393799), (6, 3595866), (9, 2397244), (12, 1797933), (18, 1198622), (23, 938052), (36, 599311), (46, 469026), (69, 312684), (71, 303876), (92, 234513), (138, 156342), (142, 151938), (207, 104228), (213, 101292), (276, 78171), (284, 75969), (367, 58788), (414, 52114), (426, 50646), (639, 33764), (734, 29394), (828, 26057), (852, 25323), (1101, 19596), (1278, 16882), (1468, 14697), (1633, 13212), (2202, 9798), (2556, 8441), (3266, 6606), (3303, 6532), (4404, 4899)]