19727474

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{6961}}^1$

素因数の和:7085

約数の個数: 16

約数和(自身を含む): 32164440

約数和(自身を除く): 12436966

約数列:

[1, 2, 13, 26, 109, 218, 1417, 2834, 6961, 13922, 90493, 180986, 758749, 1517498, 9863737, 19727474]

約数ペア:

[(1, 19727474), (2, 9863737), (13, 1517498), (26, 758749), (109, 180986), (218, 90493), (1417, 13922), (2834, 6961)]