19521790418

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{67943}}^1$

素因数の和:68258

約数の個数: 32

約数和(自身を含む): 32394612096

約数和(自身を除く): 12872821678

約数列:

[1, 2, 13, 26, 43, 86, 257, 514, 559, 1118, 3341, 6682, 11051, 22102, 67943, 135886, 143663, 287326, 883259, 1766518, 2921549, 5843098, 17461351, 34922702, 37980137, 75960274, 226997563, 453995126, 750838093, 1501676186, 9760895209, 19521790418]

約数ペア:

[(1, 19521790418), (2, 9760895209), (13, 1501676186), (26, 750838093), (43, 453995126), (86, 226997563), (257, 75960274), (514, 37980137), (559, 34922702), (1118, 17461351), (3341, 5843098), (6682, 2921549), (11051, 1766518), (22102, 883259), (67943, 287326), (135886, 143663)]