81268959

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{877}}^1$

素因数の和:999

約数の個数: 32

約数和(自身を含む): 121374720

約数和(自身を除く): 40105761

約数列:

[1, 3, 17, 23, 51, 69, 79, 237, 391, 877, 1173, 1343, 1817, 2631, 4029, 5451, 14909, 20171, 30889, 44727, 60513, 69283, 92667, 207849, 342907, 1028721, 1177811, 1593509, 3533433, 4780527, 27089653, 81268959]

約数ペア:

[(1, 81268959), (3, 27089653), (17, 4780527), (23, 3533433), (51, 1593509), (69, 1177811), (79, 1028721), (237, 342907), (391, 207849), (877, 92667), (1173, 69283), (1343, 60513), (1817, 44727), (2631, 30889), (4029, 20171), (5451, 14909)]