21900494

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{142211}}^1$

素因数の和:142231

約数の個数: 16

約数和(自身を含む): 40957056

約数和(自身を除く): 19056562

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 142211, 284422, 995477, 1564321, 1990954, 3128642, 10950247, 21900494]

約数ペア:

[(1, 21900494), (2, 10950247), (7, 3128642), (11, 1990954), (14, 1564321), (22, 995477), (77, 284422), (154, 142211)]