21494133

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{283}}^1$

素因数の和:418

約数の個数: 32

約数和(自身を含む): 33398400

約数和(自身を除く): 11904267

約数列:

[1, 3, 9, 27, 29, 87, 97, 261, 283, 291, 783, 849, 873, 2547, 2619, 2813, 7641, 8207, 8439, 24621, 25317, 27451, 73863, 75951, 82353, 221589, 247059, 741177, 796079, 2388237, 7164711, 21494133]

約数ペア:

[(1, 21494133), (3, 7164711), (9, 2388237), (27, 796079), (29, 741177), (87, 247059), (97, 221589), (261, 82353), (283, 75951), (291, 73863), (783, 27451), (849, 25317), (873, 24621), (2547, 8439), (2619, 8207), (2813, 7641)]