28364986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{857}}^1$

素因数の和:958

約数の個数: 32

約数和(自身を含む): 49008960

約数和(自身を除く): 20643974

約数列:

[1, 2, 13, 19, 26, 38, 67, 134, 247, 494, 857, 871, 1273, 1714, 1742, 2546, 11141, 16283, 16549, 22282, 32566, 33098, 57419, 114838, 211679, 423358, 746447, 1090961, 1492894, 2181922, 14182493, 28364986]

約数ペア:

[(1, 28364986), (2, 14182493), (13, 2181922), (19, 1492894), (26, 1090961), (38, 746447), (67, 423358), (134, 211679), (247, 114838), (494, 57419), (857, 33098), (871, 32566), (1273, 22282), (1714, 16549), (1742, 16283), (2546, 11141)]