20814709

素因数分解:

${\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{349}}^1$

素因数の和:484

約数の個数: 16

約数和(自身を含む): 22792000

約数和(自身を除く): 1977291

約数列:

[1, 19, 43, 73, 349, 817, 1387, 3139, 6631, 15007, 25477, 59641, 285133, 484063, 1095511, 20814709]

約数ペア:

[(1, 20814709), (19, 1095511), (43, 484063), (73, 285133), (349, 59641), (817, 25477), (1387, 15007), (3139, 6631)]