20214441

素因数分解:

$3^9\times {\mathrm{13}}^1\times {\mathrm{79}}^1$

素因数の和:119

約数の個数: 40

約数和(自身を含む): 33066880

約数和(自身を除く): 12852439

約数列:

[1, 3, 9, 13, 27, 39, 79, 81, 117, 237, 243, 351, 711, 729, 1027, 1053, 2133, 2187, 3081, 3159, 6399, 6561, 9243, 9477, 19197, 19683, 27729, 28431, 57591, 83187, 85293, 172773, 249561, 255879, 518319, 748683, 1554957, 2246049, 6738147, 20214441]

約数ペア:

[(1, 20214441), (3, 6738147), (9, 2246049), (13, 1554957), (27, 748683), (39, 518319), (79, 255879), (81, 249561), (117, 172773), (237, 85293), (243, 83187), (351, 57591), (711, 28431), (729, 27729), (1027, 19683), (1053, 19197), (2133, 9477), (2187, 9243), (3081, 6561), (3159, 6399)]