9981009

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:246

約数の個数: 32

約数和(自身を含む): 15491840

約数和(自身を除く): 5510831

約数列:

[1, 3, 9, 27, 37, 97, 103, 111, 291, 309, 333, 873, 927, 999, 2619, 2781, 3589, 3811, 9991, 10767, 11433, 29973, 32301, 34299, 89919, 96903, 102897, 269757, 369667, 1109001, 3327003, 9981009]

約数ペア:

[(1, 9981009), (3, 3327003), (9, 1109001), (27, 369667), (37, 269757), (97, 102897), (103, 96903), (111, 89919), (291, 34299), (309, 32301), (333, 29973), (873, 11433), (927, 10767), (999, 9991), (2619, 3811), (2781, 3589)]