28840887

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:332

約数の個数: 32

約数和(自身を含む): 44064000

約数和(自身を除く): 15223113

約数列:

[1, 3, 9, 27, 67, 107, 149, 201, 321, 447, 603, 963, 1341, 1809, 2889, 4023, 7169, 9983, 15943, 21507, 29949, 47829, 64521, 89847, 143487, 193563, 269541, 430461, 1068181, 3204543, 9613629, 28840887]

約数ペア:

[(1, 28840887), (3, 9613629), (9, 3204543), (27, 1068181), (67, 430461), (107, 269541), (149, 193563), (201, 143487), (321, 89847), (447, 64521), (603, 47829), (963, 29949), (1341, 21507), (1809, 15943), (2889, 9983), (4023, 7169)]