20707983

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{733}}^1$

素因数の和:855

約数の個数: 24

約数和(自身を含む): 31068752

約数和(自身を除く): 10360769

約数列:

[1, 3, 9, 43, 73, 129, 219, 387, 657, 733, 2199, 3139, 6597, 9417, 28251, 31519, 53509, 94557, 160527, 283671, 481581, 2300887, 6902661, 20707983]

約数ペア:

[(1, 20707983), (3, 6902661), (9, 2300887), (43, 481581), (73, 283671), (129, 160527), (219, 94557), (387, 53509), (657, 31519), (733, 28251), (2199, 9417), (3139, 6597)]