21254260

素因数分解:

$2^2\times 5^1\times {\mathrm{233}}^1\times {\mathrm{4561}}^1$

素因数の和:4803

約数の個数: 24

約数和(自身を含む): 44835336

約数和(自身を除く): 23581076

約数列:

[1, 2, 4, 5, 10, 20, 233, 466, 932, 1165, 2330, 4561, 4660, 9122, 18244, 22805, 45610, 91220, 1062713, 2125426, 4250852, 5313565, 10627130, 21254260]

約数ペア:

[(1, 21254260), (2, 10627130), (4, 5313565), (5, 4250852), (10, 2125426), (20, 1062713), (233, 91220), (466, 45610), (932, 22805), (1165, 18244), (2330, 9122), (4561, 4660)]