20306

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:97

約数の個数: 16

約数和(自身を含む): 36288

約数和(自身を除く): 15982

約数列:

[1, 2, 11, 13, 22, 26, 71, 142, 143, 286, 781, 923, 1562, 1846, 10153, 20306]

約数ペア:

[(1, 20306), (2, 10153), (11, 1846), (13, 1562), (22, 923), (26, 781), (71, 286), (142, 143)]