21822543

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 35582976

約数和(自身を除く): 13760433

約数列:

[1, 3, 9, 17, 31, 43, 51, 93, 107, 129, 153, 279, 321, 387, 527, 731, 963, 1333, 1581, 1819, 2193, 3317, 3999, 4601, 4743, 5457, 6579, 9951, 11997, 13803, 16371, 22661, 29853, 41409, 56389, 67983, 78217, 142631, 169167, 203949, 234651, 427893, 507501, 703953, 1283679, 2424727, 7274181, 21822543]

約数ペア:

[(1, 21822543), (3, 7274181), (9, 2424727), (17, 1283679), (31, 703953), (43, 507501), (51, 427893), (93, 234651), (107, 203949), (129, 169167), (153, 142631), (279, 78217), (321, 67983), (387, 56389), (527, 41409), (731, 29853), (963, 22661), (1333, 16371), (1581, 13803), (1819, 11997), (2193, 9951), (3317, 6579), (3999, 5457), (4601, 4743)]