20807888

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68447}}^1$

素因数の和:68474

約数の個数: 20

約数和(自身を含む): 42437760

約数和(自身を除く): 21629872

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68447, 136894, 273788, 547576, 1095152, 1300493, 2600986, 5201972, 10403944, 20807888]

約数ペア:

[(1, 20807888), (2, 10403944), (4, 5201972), (8, 2600986), (16, 1300493), (19, 1095152), (38, 547576), (76, 273788), (152, 136894), (304, 68447)]