991296621

素因数分解:

$3^2\times 7^1\times {\mathrm{337}}^1\times {\mathrm{46691}}^1$

素因数の和:47041

約数の個数: 24

約数和(自身を含む): 1641317184

約数和(自身を除く): 650020563

約数列:

[1, 3, 7, 9, 21, 63, 337, 1011, 2359, 3033, 7077, 21231, 46691, 140073, 326837, 420219, 980511, 2941533, 15734867, 47204601, 110144069, 141613803, 330432207, 991296621]

約数ペア:

[(1, 991296621), (3, 330432207), (7, 141613803), (9, 110144069), (21, 47204601), (63, 15734867), (337, 2941533), (1011, 980511), (2359, 420219), (3033, 326837), (7077, 140073), (21231, 46691)]