20505398

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1\times {\mathrm{557}}^1$

素因数の和:871

約数の個数: 16

約数和(自身を含む): 31337280

約数和(自身を除く): 10831882

約数列:

[1, 2, 79, 158, 233, 466, 557, 1114, 18407, 36814, 44003, 88006, 129781, 259562, 10252699, 20505398]

約数ペア:

[(1, 20505398), (2, 10252699), (79, 259562), (158, 129781), (233, 88006), (466, 44003), (557, 36814), (1114, 18407)]