21821761

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{337}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 25041744

約数和(自身を除く): 3219983

約数列:

[1, 13, 17, 221, 293, 337, 3809, 4381, 4981, 5729, 64753, 74477, 98741, 1283633, 1678597, 21821761]

約数ペア:

[(1, 21821761), (13, 1678597), (17, 1283633), (221, 98741), (293, 74477), (337, 64753), (3809, 5729), (4381, 4981)]