978125981

素因数分解:

$7^1\times {\mathrm{31}}^2\times {\mathrm{97}}^1\times {\mathrm{1499}}^1$

素因数の和:1665

約数の個数: 24

約数和(自身を含む): 1167768000

約数和(自身を除く): 189642019

約数列:

[1, 7, 31, 97, 217, 679, 961, 1499, 3007, 6727, 10493, 21049, 46469, 93217, 145403, 325283, 652519, 1017821, 1440539, 4507493, 10083773, 31552451, 139732283, 978125981]

約数ペア:

[(1, 978125981), (7, 139732283), (31, 31552451), (97, 10083773), (217, 4507493), (679, 1440539), (961, 1017821), (1499, 652519), (3007, 325283), (6727, 145403), (10493, 93217), (21049, 46469)]