20805814899

素因数分解:

$3^3\times {\mathrm{73}}^1\times {\mathrm{10555969}}^1$

素因数の和:10556051

約数の個数: 16

約数和(自身を含む): 31245671200

約数和(自身を除く): 10439856301

約数列:

[1, 3, 9, 27, 73, 219, 657, 1971, 10555969, 31667907, 95003721, 285011163, 770585737, 2311757211, 6935271633, 20805814899]

約数ペア:

[(1, 20805814899), (3, 6935271633), (9, 2311757211), (27, 770585737), (73, 285011163), (219, 95003721), (657, 31667907), (1971, 10555969)]