19949699

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2671}}^1$

素因数の和:2786

約数の個数: 16

約数和(自身を含む): 25138176

約数和(自身を除く): 5188477

約数列:

[1, 7, 11, 77, 97, 679, 1067, 2671, 7469, 18697, 29381, 205667, 259087, 1813609, 2849957, 19949699]

約数ペア:

[(1, 19949699), (7, 2849957), (11, 1813609), (77, 259087), (97, 205667), (679, 29381), (1067, 18697), (2671, 7469)]