28971213

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{5309}}^1$

素因数の和:5436

約数の個数: 16

約数和(自身を含む): 41290560

約数和(自身を除く): 12319347

約数列:

[1, 3, 17, 51, 107, 321, 1819, 5309, 5457, 15927, 90253, 270759, 568063, 1704189, 9657071, 28971213]

約数ペア:

[(1, 28971213), (3, 9657071), (17, 1704189), (51, 568063), (107, 270759), (321, 90253), (1819, 15927), (5309, 5457)]