20940699

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{12487}}^1$

素因数の和:12546

約数の個数: 16

約数和(自身を含む): 30770432

約数和(自身を除く): 9829733

約数列:

[1, 3, 13, 39, 43, 129, 559, 1677, 12487, 37461, 162331, 486993, 536941, 1610823, 6980233, 20940699]

約数ペア:

[(1, 20940699), (3, 6980233), (13, 1610823), (39, 536941), (43, 486993), (129, 162331), (559, 37461), (1677, 12487)]