21756616

素因数分解:

$2^3\times 7^1\times {\mathrm{443}}^1\times {\mathrm{877}}^1$

素因数の和:1333

約数の個数: 32

約数和(自身を含む): 46779840

約数和(自身を除く): 25023224

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 443, 877, 886, 1754, 1772, 3101, 3508, 3544, 6139, 6202, 7016, 12278, 12404, 24556, 24808, 49112, 388511, 777022, 1554044, 2719577, 3108088, 5439154, 10878308, 21756616]

約数ペア:

[(1, 21756616), (2, 10878308), (4, 5439154), (7, 3108088), (8, 2719577), (14, 1554044), (28, 777022), (56, 388511), (443, 49112), (877, 24808), (886, 24556), (1754, 12404), (1772, 12278), (3101, 7016), (3508, 6202), (3544, 6139)]