389621757

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{491}}^1\times {\mathrm{1303}}^1$

素因数の和:1833

約数の個数: 32

約数和(自身を含む): 615905280

約数和(自身を除く): 226283523

約数列:

[1, 3, 7, 21, 29, 87, 203, 491, 609, 1303, 1473, 3437, 3909, 9121, 10311, 14239, 27363, 37787, 42717, 99673, 113361, 264509, 299019, 639773, 793527, 1919319, 4478411, 13435233, 18553417, 55660251, 129873919, 389621757]

約数ペア:

[(1, 389621757), (3, 129873919), (7, 55660251), (21, 18553417), (29, 13435233), (87, 4478411), (203, 1919319), (491, 793527), (609, 639773), (1303, 299019), (1473, 264509), (3437, 113361), (3909, 99673), (9121, 42717), (10311, 37787), (14239, 27363)]