20378259

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4787}}^1$

素因数の和:4847

約数の個数: 24

約数和(自身を含む): 32864832

約数和(自身を除く): 12486573

約数列:

[1, 3, 9, 11, 33, 43, 99, 129, 387, 473, 1419, 4257, 4787, 14361, 43083, 52657, 157971, 205841, 473913, 617523, 1852569, 2264251, 6792753, 20378259]

約数ペア:

[(1, 20378259), (3, 6792753), (9, 2264251), (11, 1852569), (33, 617523), (43, 473913), (99, 205841), (129, 157971), (387, 52657), (473, 43083), (1419, 14361), (4257, 4787)]