20817045

素因数分解:

$3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6337}}^1$

素因数の和:6421

約数の個数: 24

約数和(自身を含む): 36582936

約数和(自身を除く): 15765891

約数列:

[1, 3, 5, 9, 15, 45, 73, 219, 365, 657, 1095, 3285, 6337, 19011, 31685, 57033, 95055, 285165, 462601, 1387803, 2313005, 4163409, 6939015, 20817045]

約数ペア:

[(1, 20817045), (3, 6939015), (5, 4163409), (9, 2313005), (15, 1387803), (45, 462601), (73, 285165), (219, 95055), (365, 57033), (657, 31685), (1095, 19011), (3285, 6337)]