28161266

素因数分解:

$2^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{5171}}^1$

素因数の和:5569

約数の個数: 16

約数和(自身を含む): 48409920

約数和(自身を除く): 20248654

約数列:

[1, 2, 7, 14, 389, 778, 2723, 5171, 5446, 10342, 36197, 72394, 2011519, 4023038, 14080633, 28161266]

約数ペア:

[(1, 28161266), (2, 14080633), (7, 4023038), (14, 2011519), (389, 72394), (778, 36197), (2723, 10342), (5171, 5446)]