78211899

素因数分解:

$3^4\times {\mathrm{193}}^1\times {\mathrm{5003}}^1$

素因数の和:5208

約数の個数: 20

約数和(自身を含む): 117463896

約数和(自身を除く): 39251997

約数列:

[1, 3, 9, 27, 81, 193, 579, 1737, 5003, 5211, 15009, 15633, 45027, 135081, 405243, 965579, 2896737, 8690211, 26070633, 78211899]

約数ペア:

[(1, 78211899), (3, 26070633), (9, 8690211), (27, 2896737), (81, 965579), (193, 405243), (579, 135081), (1737, 45027), (5003, 15633), (5211, 15009)]