19995417

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1117}}^1$

素因数の和:1159

約数の個数: 40

約数和(自身を含む): 34090056

約数和(自身を除く): 14094639

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 81, 117, 153, 221, 351, 459, 663, 1053, 1117, 1377, 1989, 3351, 5967, 10053, 14521, 17901, 18989, 30159, 43563, 56967, 90477, 130689, 170901, 246857, 392067, 512703, 740571, 1176201, 1538109, 2221713, 6665139, 19995417]

約数ペア:

[(1, 19995417), (3, 6665139), (9, 2221713), (13, 1538109), (17, 1176201), (27, 740571), (39, 512703), (51, 392067), (81, 246857), (117, 170901), (153, 130689), (221, 90477), (351, 56967), (459, 43563), (663, 30159), (1053, 18989), (1117, 17901), (1377, 14521), (1989, 10053), (3351, 5967)]