19968711

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{9803}}^1$

素因数の和:9910

約数の個数: 16

約数和(自身を含む): 30745344

約数和(自身を除く): 10776633

約数列:

[1, 3, 7, 21, 97, 291, 679, 2037, 9803, 29409, 68621, 205863, 950891, 2852673, 6656237, 19968711]

約数ペア:

[(1, 19968711), (3, 6656237), (7, 2852673), (21, 950891), (97, 205863), (291, 68621), (679, 29409), (2037, 9803)]