31647321

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{401}}^1$

素因数の和:526

約数の個数: 32

約数和(自身を含む): 48883200

約数和(自身を除く): 17235879

約数列:

[1, 3, 9, 27, 37, 79, 111, 237, 333, 401, 711, 999, 1203, 2133, 2923, 3609, 8769, 10827, 14837, 26307, 31679, 44511, 78921, 95037, 133533, 285111, 400599, 855333, 1172123, 3516369, 10549107, 31647321]

約数ペア:

[(1, 31647321), (3, 10549107), (9, 3516369), (27, 1172123), (37, 855333), (79, 400599), (111, 285111), (237, 133533), (333, 95037), (401, 78921), (711, 44511), (999, 31679), (1203, 26307), (2133, 14837), (2923, 10827), (3609, 8769)]