21437969

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3833}}^1$

素因数の和:3904

約数の個数: 16

約数和(自身を含む): 26500608

約数和(自身を除く): 5062639

約数列:

[1, 7, 17, 47, 119, 329, 799, 3833, 5593, 26831, 65161, 180151, 456127, 1261057, 3062567, 21437969]

約数ペア:

[(1, 21437969), (7, 3062567), (17, 1261057), (47, 456127), (119, 180151), (329, 65161), (799, 26831), (3833, 5593)]