20984902

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{8693}}^1$

素因数の和:8783

約数の個数: 16

約数和(自身を含む): 33802272

約数和(自身を除く): 12817370

約数列:

[1, 2, 17, 34, 71, 142, 1207, 2414, 8693, 17386, 147781, 295562, 617203, 1234406, 10492451, 20984902]

約数ペア:

[(1, 20984902), (2, 10492451), (17, 1234406), (34, 617203), (71, 295562), (142, 147781), (1207, 17386), (2414, 8693)]