28041454

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{389}}^1$

素因数の和:688

約数の個数: 32

約数和(自身を含む): 50918400

約数和(自身を除く): 22876946

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 271, 389, 542, 778, 1897, 2723, 3794, 5149, 5446, 7391, 10298, 14782, 36043, 51737, 72086, 103474, 105419, 210838, 737933, 1475866, 2002961, 4005922, 14020727, 28041454]

約数ペア:

[(1, 28041454), (2, 14020727), (7, 4005922), (14, 2002961), (19, 1475866), (38, 737933), (133, 210838), (266, 105419), (271, 103474), (389, 72086), (542, 51737), (778, 36043), (1897, 14782), (2723, 10298), (3794, 7391), (5149, 5446)]