20009319

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{239}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 10403481

約数列:

[1, 3, 11, 33, 43, 59, 129, 177, 239, 473, 649, 717, 1419, 1947, 2537, 2629, 7611, 7887, 10277, 14101, 27907, 30831, 42303, 83721, 113047, 155111, 339141, 465333, 606343, 1819029, 6669773, 20009319]

約数ペア:

[(1, 20009319), (3, 6669773), (11, 1819029), (33, 606343), (43, 465333), (59, 339141), (129, 155111), (177, 113047), (239, 83721), (473, 42303), (649, 30831), (717, 27907), (1419, 14101), (1947, 10277), (2537, 7887), (2629, 7611)]