21797284

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^2$

素因数の和:216

約数の個数: 36

約数和(自身を含む): 41231232

約数和(自身を除く): 19433948

約数列:

[1, 2, 4, 23, 46, 47, 71, 92, 94, 142, 188, 284, 1081, 1633, 2162, 3266, 3337, 4324, 5041, 6532, 6674, 10082, 13348, 20164, 76751, 115943, 153502, 231886, 236927, 307004, 463772, 473854, 947708, 5449321, 10898642, 21797284]

約数ペア:

[(1, 21797284), (2, 10898642), (4, 5449321), (23, 947708), (46, 473854), (47, 463772), (71, 307004), (92, 236927), (94, 231886), (142, 153502), (188, 115943), (284, 76751), (1081, 20164), (1633, 13348), (2162, 10082), (3266, 6674), (3337, 6532), (4324, 5041)]