20318683

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:208

約数の個数: 36

約数和(自身を含む): 27291600

約数和(自身を除く): 6972917

約数列:

[1, 7, 11, 23, 49, 77, 121, 149, 161, 253, 539, 847, 1043, 1127, 1639, 1771, 2783, 3427, 5929, 7301, 11473, 12397, 18029, 19481, 23989, 37697, 80311, 126203, 136367, 167923, 263879, 414667, 883421, 1847153, 2902669, 20318683]

約数ペア:

[(1, 20318683), (7, 2902669), (11, 1847153), (23, 883421), (49, 414667), (77, 263879), (121, 167923), (149, 136367), (161, 126203), (253, 80311), (539, 37697), (847, 23989), (1043, 19481), (1127, 18029), (1639, 12397), (1771, 11473), (2783, 7301), (3427, 5929)]