28742259

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{829}}^1$

素因数の和:979

約数の個数: 32

約数和(自身を含む): 47595520

約数和(自身を除く): 18853261

約数列:

[1, 3, 7, 13, 21, 39, 91, 127, 273, 381, 829, 889, 1651, 2487, 2667, 4953, 5803, 10777, 11557, 17409, 32331, 34671, 75439, 105283, 226317, 315849, 736981, 1368679, 2210943, 4106037, 9580753, 28742259]

約数ペア:

[(1, 28742259), (3, 9580753), (7, 4106037), (13, 2210943), (21, 1368679), (39, 736981), (91, 315849), (127, 226317), (273, 105283), (381, 75439), (829, 34671), (889, 32331), (1651, 17409), (2487, 11557), (2667, 10777), (4953, 5803)]