21215794

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{2819}}^1$

素因数の和:2945

約数の個数: 16

約数和(自身を含む): 32892480

約数和(自身を除く): 11676686

約数列:

[1, 2, 53, 71, 106, 142, 2819, 3763, 5638, 7526, 149407, 200149, 298814, 400298, 10607897, 21215794]

約数ペア:

[(1, 21215794), (2, 10607897), (53, 400298), (71, 298814), (106, 200149), (142, 149407), (2819, 7526), (3763, 5638)]