20826316

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{443}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 44158464

約数和(自身を除く): 23332148

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 73, 92, 146, 161, 292, 322, 443, 511, 644, 886, 1022, 1679, 1772, 2044, 3101, 3358, 6202, 6716, 10189, 11753, 12404, 20378, 23506, 32339, 40756, 47012, 64678, 71323, 129356, 142646, 226373, 285292, 452746, 743797, 905492, 1487594, 2975188, 5206579, 10413158, 20826316]

約数ペア:

[(1, 20826316), (2, 10413158), (4, 5206579), (7, 2975188), (14, 1487594), (23, 905492), (28, 743797), (46, 452746), (73, 285292), (92, 226373), (146, 142646), (161, 129356), (292, 71323), (322, 64678), (443, 47012), (511, 40756), (644, 32339), (886, 23506), (1022, 20378), (1679, 12404), (1772, 11753), (2044, 10189), (3101, 6716), (3358, 6202)]