18778947

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{2381}}^1$

素因数の和:2634

約数の個数: 16

約数和(自身を含む): 27440640

約数和(自身を除く): 8661693

約数列:

[1, 3, 11, 33, 239, 717, 2381, 2629, 7143, 7887, 26191, 78573, 569059, 1707177, 6259649, 18778947]

約数ペア:

[(1, 18778947), (3, 6259649), (11, 1707177), (33, 569059), (239, 78573), (717, 26191), (2381, 7887), (2629, 7143)]