21395124

素因数分解:

$2^2\times 3^3\times {\mathrm{397}}^1\times {\mathrm{499}}^1$

素因数の和:909

約数の個数: 48

約数和(自身を含む): 55720000

約数和(自身を除く): 34324876

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 397, 499, 794, 998, 1191, 1497, 1588, 1996, 2382, 2994, 3573, 4491, 4764, 5988, 7146, 8982, 10719, 13473, 14292, 17964, 21438, 26946, 42876, 53892, 198103, 396206, 594309, 792412, 1188618, 1782927, 2377236, 3565854, 5348781, 7131708, 10697562, 21395124]

約数ペア:

[(1, 21395124), (2, 10697562), (3, 7131708), (4, 5348781), (6, 3565854), (9, 2377236), (12, 1782927), (18, 1188618), (27, 792412), (36, 594309), (54, 396206), (108, 198103), (397, 53892), (499, 42876), (794, 26946), (998, 21438), (1191, 17964), (1497, 14292), (1588, 13473), (1996, 10719), (2382, 8982), (2994, 7146), (3573, 5988), (4491, 4764)]