20288877

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{18229}}^1$

素因数の和:18292

約数の個数: 16

約数和(自身を含む): 31501440

約数和(自身を除く): 11212563

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 18229, 54687, 127603, 382809, 966137, 2898411, 6762959, 20288877]

約数ペア:

[(1, 20288877), (3, 6762959), (7, 2898411), (21, 966137), (53, 382809), (159, 127603), (371, 54687), (1113, 18229)]