28001806

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{32789}}^1$

素因数の和:32859

約数の個数: 16

約数和(自身を含む): 48791520

約数和(自身を除く): 20789714

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 32789, 65578, 229523, 459046, 2000129, 4000258, 14000903, 28001806]

約数ペア:

[(1, 28001806), (2, 14000903), (7, 4000258), (14, 2000129), (61, 459046), (122, 229523), (427, 65578), (854, 32789)]