19977003

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{19997}}^1$

素因数の和:20043

約数の個数: 16

約数和(自身を含む): 30396960

約数和(自身を除く): 10419957

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 19997, 59991, 179973, 539919, 739889, 2219667, 6659001, 19977003]

約数ペア:

[(1, 19977003), (3, 6659001), (9, 2219667), (27, 739889), (37, 539919), (111, 179973), (333, 59991), (999, 19997)]