618890097

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{81637}}^1$

素因数の和:81685

約数の個数: 24

約数和(自身を含む): 995330496

約数和(自身を除く): 376440399

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 7581, 81637, 244911, 571459, 1551103, 1714377, 4653309, 10857721, 29470957, 32573163, 88412871, 206296699, 618890097]

約数ペア:

[(1, 618890097), (3, 206296699), (7, 88412871), (19, 32573163), (21, 29470957), (57, 10857721), (133, 4653309), (361, 1714377), (399, 1551103), (1083, 571459), (2527, 244911), (7581, 81637)]