21780881

素因数分解:

${\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:304

約数の個数: 16

約数和(自身を含む): 23224320

約数和(自身を除く): 1443439

約数列:

[1, 41, 47, 89, 127, 1927, 3649, 4183, 5207, 5969, 11303, 171503, 244729, 463423, 531241, 21780881]

約数ペア:

[(1, 21780881), (41, 531241), (47, 463423), (89, 244729), (127, 171503), (1927, 11303), (3649, 5969), (4183, 5207)]