80931231

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{13687}}^1$

素因数の和:13772

約数の個数: 20

約数和(自身を含む): 122562352

約数和(自身を除く): 41631121

約数列:

[1, 3, 9, 27, 73, 81, 219, 657, 1971, 5913, 13687, 41061, 123183, 369549, 999151, 1108647, 2997453, 8992359, 26977077, 80931231]

約数ペア:

[(1, 80931231), (3, 26977077), (9, 8992359), (27, 2997453), (73, 1108647), (81, 999151), (219, 369549), (657, 123183), (1971, 41061), (5913, 13687)]