20007658

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12809}}^1$

素因数の和:12893

約数の個数: 16

約数和(自身を含む): 33203520

約数和(自身を除く): 13195862

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 12809, 25618, 140899, 281798, 909439, 1818878, 10003829, 20007658]

約数ペア:

[(1, 20007658), (2, 10003829), (11, 1818878), (22, 909439), (71, 281798), (142, 140899), (781, 25618), (1562, 12809)]