21899343

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{277}}^1$

素因数の和:391

約数の個数: 24

約数和(自身を含む): 31351728

約数和(自身を除く): 9452385

約数列:

[1, 3, 19, 57, 73, 219, 277, 361, 831, 1083, 1387, 4161, 5263, 15789, 20221, 26353, 60663, 79059, 99997, 299991, 384199, 1152597, 7299781, 21899343]

約数ペア:

[(1, 21899343), (3, 7299781), (19, 1152597), (57, 384199), (73, 299991), (219, 99997), (277, 79059), (361, 60663), (831, 26353), (1083, 20221), (1387, 15789), (4161, 5263)]