18715972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{425363}}^1$

素因数の和:425378

約数の個数: 12

約数和(自身を含む): 35730576

約数和(自身を除く): 17014604

約数列:

[1, 2, 4, 11, 22, 44, 425363, 850726, 1701452, 4678993, 9357986, 18715972]

約数ペア:

[(1, 18715972), (2, 9357986), (4, 4678993), (11, 1701452), (22, 850726), (44, 425363)]