20189457

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3191}}^1$

素因数の和:3253

約数の個数: 24

約数和(自身を含む): 31536960

約数和(自身を除く): 11347503

約数列:

[1, 3, 9, 19, 37, 57, 111, 171, 333, 703, 2109, 3191, 6327, 9573, 28719, 60629, 118067, 181887, 354201, 545661, 1062603, 2243273, 6729819, 20189457]

約数ペア:

[(1, 20189457), (3, 6729819), (9, 2243273), (19, 1062603), (37, 545661), (57, 354201), (111, 181887), (171, 118067), (333, 60629), (703, 28719), (2109, 9573), (3191, 6327)]