51147207

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{7993}}^1$

素因数の和:8084

約数の個数: 20

約数和(自身を含む): 77381920

約数和(自身を除く): 26234713

約数列:

[1, 3, 9, 27, 79, 81, 237, 711, 2133, 6399, 7993, 23979, 71937, 215811, 631447, 647433, 1894341, 5683023, 17049069, 51147207]

約数ペア:

[(1, 51147207), (3, 17049069), (9, 5683023), (27, 1894341), (79, 647433), (81, 631447), (237, 215811), (711, 71937), (2133, 23979), (6399, 7993)]