21138191

素因数分解:

${\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{211}}^1$

素因数の和:382

約数の個数: 16

約数和(自身を含む): 23079168

約数和(自身を除く): 1940977

約数列:

[1, 17, 71, 83, 211, 1207, 1411, 3587, 5893, 14981, 17513, 100181, 254677, 297721, 1243423, 21138191]

約数ペア:

[(1, 21138191), (17, 1243423), (71, 297721), (83, 254677), (211, 100181), (1207, 17513), (1411, 14981), (3587, 5893)]