21705583

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1291}}^1$

素因数の和:1374

約数の個数: 16

約数和(自身を含む): 24558336

約数和(自身を除く): 2852753

約数列:

[1, 17, 23, 43, 391, 731, 989, 1291, 16813, 21947, 29693, 55513, 504781, 943721, 1276799, 21705583]

約数ペア:

[(1, 21705583), (17, 1276799), (23, 943721), (43, 504781), (391, 55513), (731, 29693), (989, 21947), (1291, 16813)]