21149109

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{367}}^1$

素因数の和:729

約数の個数: 24

約数和(自身を含む): 32339840

約数和(自身を除く): 11190731

約数列:

[1, 3, 9, 19, 57, 171, 337, 367, 1011, 1101, 3033, 3303, 6403, 6973, 19209, 20919, 57627, 62757, 123679, 371037, 1113111, 2349901, 7049703, 21149109]

約数ペア:

[(1, 21149109), (3, 7049703), (9, 2349901), (19, 1113111), (57, 371037), (171, 123679), (337, 62757), (367, 57627), (1011, 20919), (1101, 19209), (3033, 6973), (3303, 6403)]