21961348

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{2543}}^1$

素因数の和:2691

約数の個数: 24

約数和(自身を含む): 41029632

約数和(自身を除く): 19068284

約数列:

[1, 2, 4, 17, 34, 68, 127, 254, 508, 2159, 2543, 4318, 5086, 8636, 10172, 43231, 86462, 172924, 322961, 645922, 1291844, 5490337, 10980674, 21961348]

約数ペア:

[(1, 21961348), (2, 10980674), (4, 5490337), (17, 1291844), (34, 645922), (68, 322961), (127, 172924), (254, 86462), (508, 43231), (2159, 10172), (2543, 8636), (4318, 5086)]