19412217

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{21787}}^1$

素因数の和:21810

約数の個数: 20

約数和(自身を含む): 31636176

約数和(自身を除く): 12223959

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 21787, 65361, 196083, 239657, 588249, 718971, 1764747, 2156913, 6470739, 19412217]

約数ペア:

[(1, 19412217), (3, 6470739), (9, 2156913), (11, 1764747), (27, 718971), (33, 588249), (81, 239657), (99, 196083), (297, 65361), (891, 21787)]