19999826

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2129}}^1$

素因数の和:2210

約数の個数: 32

約数和(自身を含む): 38033280

約数和(自身を除く): 18033454

約数列:

[1, 2, 7, 11, 14, 22, 61, 77, 122, 154, 427, 671, 854, 1342, 2129, 4258, 4697, 9394, 14903, 23419, 29806, 46838, 129869, 163933, 259738, 327866, 909083, 1428559, 1818166, 2857118, 9999913, 19999826]

約数ペア:

[(1, 19999826), (2, 9999913), (7, 2857118), (11, 1818166), (14, 1428559), (22, 909083), (61, 327866), (77, 259738), (122, 163933), (154, 129869), (427, 46838), (671, 29806), (854, 23419), (1342, 14903), (2129, 9394), (4258, 4697)]