21274298

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1\times {\mathrm{643}}^1$

素因数の和:949

約数の個数: 16

約数和(自身を含む): 32550336

約数和(自身を除く): 11276038

約数列:

[1, 2, 71, 142, 233, 466, 643, 1286, 16543, 33086, 45653, 91306, 149819, 299638, 10637149, 21274298]

約数ペア:

[(1, 21274298), (2, 10637149), (71, 299638), (142, 149819), (233, 91306), (466, 45653), (643, 33086), (1286, 16543)]