19803447

素因数分解:

$3^4\times {\mathrm{109}}^1\times {\mathrm{2243}}^1$

素因数の和:2364

約数の個数: 20

約数和(自身を含む): 29867640

約数和(自身を除く): 10064193

約数列:

[1, 3, 9, 27, 81, 109, 327, 981, 2243, 2943, 6729, 8829, 20187, 60561, 181683, 244487, 733461, 2200383, 6601149, 19803447]

約数ペア:

[(1, 19803447), (3, 6601149), (9, 2200383), (27, 733461), (81, 244487), (109, 181683), (327, 60561), (981, 20187), (2243, 8829), (2943, 6729)]