28720342

素因数分解:

$2^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{21149}}^1$

素因数の和:21255

約数の個数: 16

約数和(自身を含む): 49744800

約数和(自身を除く): 21024458

約数列:

[1, 2, 7, 14, 97, 194, 679, 1358, 21149, 42298, 148043, 296086, 2051453, 4102906, 14360171, 28720342]

約数ペア:

[(1, 28720342), (2, 14360171), (7, 4102906), (14, 2051453), (97, 296086), (194, 148043), (679, 42298), (1358, 21149)]