20705839

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{14153}}^1$

素因数の和:14190

約数の個数: 16

約数和(自身を含む): 27175680

約数和(自身を除く): 6469841

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 14153, 99071, 155683, 268907, 1089781, 1882349, 2957977, 20705839]

約数ペア:

[(1, 20705839), (7, 2957977), (11, 1882349), (19, 1089781), (77, 268907), (133, 155683), (209, 99071), (1463, 14153)]