20859975

素因数分解:

$3^2\times 5^2\times {\mathrm{83}}^1\times {\mathrm{1117}}^1$

素因数の和:1216

約数の個数: 36

約数和(自身を含む): 37846536

約数和(自身を除く): 16986561

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 83, 225, 249, 415, 747, 1117, 1245, 2075, 3351, 3735, 5585, 6225, 10053, 16755, 18675, 27925, 50265, 83775, 92711, 251325, 278133, 463555, 834399, 1390665, 2317775, 4171995, 6953325, 20859975]

約数ペア:

[(1, 20859975), (3, 6953325), (5, 4171995), (9, 2317775), (15, 1390665), (25, 834399), (45, 463555), (75, 278133), (83, 251325), (225, 92711), (249, 83775), (415, 50265), (747, 27925), (1117, 18675), (1245, 16755), (2075, 10053), (3351, 6225), (3735, 5585)]