1728967681

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{2671}}^1$

素因数の和:2885

約数の個数: 32

約数和(自身を含む): 2161541120

約数和(自身を除く): 432573439

約数列:

[1, 7, 19, 31, 133, 157, 217, 589, 1099, 2671, 2983, 4123, 4867, 18697, 20881, 34069, 50749, 82801, 92473, 355243, 419347, 579607, 647311, 1573219, 2935429, 7967593, 11012533, 12999757, 55773151, 90998299, 246995383, 1728967681]

約数ペア:

[(1, 1728967681), (7, 246995383), (19, 90998299), (31, 55773151), (133, 12999757), (157, 11012533), (217, 7967593), (589, 2935429), (1099, 1573219), (2671, 647311), (2983, 579607), (4123, 419347), (4867, 355243), (18697, 92473), (20881, 82801), (34069, 50749)]