19708388

素因数分解:

$2^2\times 7^2\times {\mathrm{193}}^1\times {\mathrm{521}}^1$

素因数の和:732

約数の個数: 36

約数和(自身を含む): 40405932

約数和(自身を除く): 20697544

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 193, 196, 386, 521, 772, 1042, 1351, 2084, 2702, 3647, 5404, 7294, 9457, 14588, 18914, 25529, 37828, 51058, 100553, 102116, 201106, 402212, 703871, 1407742, 2815484, 4927097, 9854194, 19708388]

約数ペア:

[(1, 19708388), (2, 9854194), (4, 4927097), (7, 2815484), (14, 1407742), (28, 703871), (49, 402212), (98, 201106), (193, 102116), (196, 100553), (386, 51058), (521, 37828), (772, 25529), (1042, 18914), (1351, 14588), (2084, 9457), (2702, 7294), (3647, 5404)]