28840689

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{7333}}^1$

素因数の和:7381

約数の個数: 24

約数和(自身を含む): 45764160

約数和(自身を除く): 16923471

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3933, 7333, 21999, 65997, 139327, 168659, 417981, 505977, 1253943, 1517931, 3204521, 9613563, 28840689]

約数ペア:

[(1, 28840689), (3, 9613563), (9, 3204521), (19, 1517931), (23, 1253943), (57, 505977), (69, 417981), (171, 168659), (207, 139327), (437, 65997), (1311, 21999), (3933, 7333)]