388640439

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{55291}}^1$

素因数の和:55379

約数の個数: 24

約数和(自身を含む): 621039744

約数和(自身を除く): 232399305

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 7029, 55291, 165873, 497619, 608201, 1824603, 3925661, 5473809, 11776983, 35330949, 43182271, 129546813, 388640439]

約数ペア:

[(1, 388640439), (3, 129546813), (9, 43182271), (11, 35330949), (33, 11776983), (71, 5473809), (99, 3925661), (213, 1824603), (639, 608201), (781, 497619), (2343, 165873), (7029, 55291)]