20702043

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1$

素因数の和:611

約数の個数: 24

約数和(自身を含む): 30888000

約数和(自身を除く): 10185957

約数列:

[1, 3, 9, 47, 109, 141, 327, 423, 449, 981, 1347, 4041, 5123, 15369, 21103, 46107, 48941, 63309, 146823, 189927, 440469, 2300227, 6900681, 20702043]

約数ペア:

[(1, 20702043), (3, 6900681), (9, 2300227), (47, 440469), (109, 189927), (141, 146823), (327, 63309), (423, 48941), (449, 46107), (981, 21103), (1347, 15369), (4041, 5123)]