20138866

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12893}}^1$

素因数の和:12977

約数の個数: 16

約数和(自身を含む): 33421248

約数和(自身を除く): 13282382

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 12893, 25786, 141823, 283646, 915403, 1830806, 10069433, 20138866]

約数ペア:

[(1, 20138866), (2, 10069433), (11, 1830806), (22, 915403), (71, 283646), (142, 141823), (781, 25786), (1562, 12893)]