18916551

素因数分解:

$3^3\times {\mathrm{641}}^1\times {\mathrm{1093}}^1$

素因数の和:1743

約数の個数: 16

約数和(自身を含む): 28093920

約数和(自身を除く): 9177369

約数列:

[1, 3, 9, 27, 641, 1093, 1923, 3279, 5769, 9837, 17307, 29511, 700613, 2101839, 6305517, 18916551]

約数ペア:

[(1, 18916551), (3, 6305517), (9, 2101839), (27, 700613), (641, 29511), (1093, 17307), (1923, 9837), (3279, 5769)]