12791889

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{823}}^1$

素因数の和:997

約数の個数: 24

約数和(自身を含む): 20309952

約数和(自身を除く): 7518063

約数列:

[1, 3, 9, 11, 33, 99, 157, 471, 823, 1413, 1727, 2469, 5181, 7407, 9053, 15543, 27159, 81477, 129211, 387633, 1162899, 1421321, 4263963, 12791889]

約数ペア:

[(1, 12791889), (3, 4263963), (9, 1421321), (11, 1162899), (33, 387633), (99, 129211), (157, 81477), (471, 27159), (823, 15543), (1413, 9053), (1727, 7407), (2469, 5181)]