15639831

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{709}}^1$

素因数の和:780

約数の個数: 32

約数和(自身を含む): 24992000

約数和(自身を除く): 9352169

約数列:

[1, 3, 9, 19, 27, 43, 57, 129, 171, 387, 513, 709, 817, 1161, 2127, 2451, 6381, 7353, 13471, 19143, 22059, 30487, 40413, 91461, 121239, 274383, 363717, 579253, 823149, 1737759, 5213277, 15639831]

約数ペア:

[(1, 15639831), (3, 5213277), (9, 1737759), (19, 823149), (27, 579253), (43, 363717), (57, 274383), (129, 121239), (171, 91461), (387, 40413), (513, 30487), (709, 22059), (817, 19143), (1161, 13471), (2127, 7353), (2451, 6381)]