28688686

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{15541}}^1$

素因数の和:15627

約数の個数: 16

約数和(自身を含む): 46999008

約数和(自身を除く): 18310322

約数列:

[1, 2, 13, 26, 71, 142, 923, 1846, 15541, 31082, 202033, 404066, 1103411, 2206822, 14344343, 28688686]

約数ペア:

[(1, 28688686), (2, 14344343), (13, 2206822), (26, 1103411), (71, 404066), (142, 202033), (923, 31082), (1846, 15541)]