81181581

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{35281}}^1$

素因数の和:35356

約数の個数: 16

約数和(自身を含む): 118547520

約数和(自身を除く): 37365939

約数列:

[1, 3, 13, 39, 59, 177, 767, 2301, 35281, 105843, 458653, 1375959, 2081579, 6244737, 27060527, 81181581]

約数ペア:

[(1, 81181581), (3, 27060527), (13, 6244737), (39, 2081579), (59, 1375959), (177, 458653), (767, 105843), (2301, 35281)]