17828991

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{2137}}^1$

素因数の和:2252

約数の個数: 20

約数和(自身を含む): 26904592

約数和(自身を除く): 9075601

約数列:

[1, 3, 9, 27, 81, 103, 309, 927, 2137, 2781, 6411, 8343, 19233, 57699, 173097, 220111, 660333, 1980999, 5942997, 17828991]

約数ペア:

[(1, 17828991), (3, 5942997), (9, 1980999), (27, 660333), (81, 220111), (103, 173097), (309, 57699), (927, 19233), (2137, 8343), (2781, 6411)]