20616477

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{349}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 32928000

約数和(自身を除く): 12311523

約数列:

[1, 3, 7, 21, 29, 87, 97, 203, 291, 349, 609, 679, 1047, 2037, 2443, 2813, 7329, 8439, 10121, 19691, 30363, 33853, 59073, 70847, 101559, 212541, 236971, 710913, 981737, 2945211, 6872159, 20616477]

約数ペア:

[(1, 20616477), (3, 6872159), (7, 2945211), (21, 981737), (29, 710913), (87, 236971), (97, 212541), (203, 101559), (291, 70847), (349, 59073), (609, 33853), (679, 30363), (1047, 19691), (2037, 10121), (2443, 8439), (2813, 7329)]