18900900477

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{439}}^1\times {\mathrm{51439}}^1$

素因数の和:51918

約数の個数: 32

約数和(自身を含む): 28971008000

約数和(自身を除く): 10070107523

約数列:

[1, 3, 9, 27, 31, 93, 279, 439, 837, 1317, 3951, 11853, 13609, 40827, 51439, 122481, 154317, 367443, 462951, 1388853, 1594609, 4783827, 14351481, 22581721, 43054443, 67745163, 203235489, 609706467, 700033351, 2100100053, 6300300159, 18900900477]

約数ペア:

[(1, 18900900477), (3, 6300300159), (9, 2100100053), (27, 700033351), (31, 609706467), (93, 203235489), (279, 67745163), (439, 43054443), (837, 22581721), (1317, 14351481), (3951, 4783827), (11853, 1594609), (13609, 1388853), (40827, 462951), (51439, 367443), (122481, 154317)]