20468799

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 34673184

約数和(自身を除く): 14204385

約数列:

[1, 3, 9, 13, 17, 39, 41, 51, 117, 123, 153, 221, 251, 369, 533, 663, 697, 753, 1599, 1989, 2091, 2259, 3263, 4267, 4797, 6273, 9061, 9789, 10291, 12801, 27183, 29367, 30873, 38403, 55471, 81549, 92619, 133783, 166413, 174947, 401349, 499239, 524841, 1204047, 1574523, 2274311, 6822933, 20468799]

約数ペア:

[(1, 20468799), (3, 6822933), (9, 2274311), (13, 1574523), (17, 1204047), (39, 524841), (41, 499239), (51, 401349), (117, 174947), (123, 166413), (153, 133783), (221, 92619), (251, 81549), (369, 55471), (533, 38403), (663, 30873), (697, 29367), (753, 27183), (1599, 12801), (1989, 10291), (2091, 9789), (2259, 9061), (3263, 6273), (4267, 4797)]