21260435

素因数分解:

$5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{4783}}^1$

素因数の和:4922

約数の個数: 16

約数和(自身を含む): 29392896

約数和(自身を除く): 8132461

約数列:

[1, 5, 7, 35, 127, 635, 889, 4445, 4783, 23915, 33481, 167405, 607441, 3037205, 4252087, 21260435]

約数ペア:

[(1, 21260435), (5, 4252087), (7, 3037205), (35, 607441), (127, 167405), (635, 33481), (889, 23915), (4445, 4783)]