2780455977

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{2640509}}^1$

素因数の和:2640534

約数の個数: 20

約数和(自身を含む): 4473023940

約数和(自身を除く): 1692567963

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 2640509, 7921527, 23764581, 34326617, 71293743, 102979851, 213881229, 308939553, 926818659, 2780455977]

約数ペア:

[(1, 2780455977), (3, 926818659), (9, 308939553), (13, 213881229), (27, 102979851), (39, 71293743), (81, 34326617), (117, 23764581), (351, 7921527), (1053, 2640509)]