21994841

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1217}}^1$

素因数の和:1312

約数の個数: 16

約数和(自身を含む): 25256448

約数和(自身を除く): 3261607

約数列:

[1, 11, 31, 53, 341, 583, 1217, 1643, 13387, 18073, 37727, 64501, 414997, 709511, 1999531, 21994841]

約数ペア:

[(1, 21994841), (11, 1999531), (31, 709511), (53, 414997), (341, 64501), (583, 37727), (1217, 18073), (1643, 13387)]