20516216

素因数分解:

$2^3\times 7^1\times {\mathrm{443}}^1\times {\mathrm{827}}^1$

素因数の和:1283

約数の個数: 32

約数和(自身を含む): 44115840

約数和(自身を除く): 23599624

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 443, 827, 886, 1654, 1772, 3101, 3308, 3544, 5789, 6202, 6616, 11578, 12404, 23156, 24808, 46312, 366361, 732722, 1465444, 2564527, 2930888, 5129054, 10258108, 20516216]

約数ペア:

[(1, 20516216), (2, 10258108), (4, 5129054), (7, 2930888), (8, 2564527), (14, 1465444), (28, 732722), (56, 366361), (443, 46312), (827, 24808), (886, 23156), (1654, 12404), (1772, 11578), (3101, 6616), (3308, 6202), (3544, 5789)]