18721868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{463}}^1\times {\mathrm{919}}^1$

素因数の和:1397

約数の個数: 24

約数和(自身を含む): 35857920

約数和(自身を除く): 17136052

約数列:

[1, 2, 4, 11, 22, 44, 463, 919, 926, 1838, 1852, 3676, 5093, 10109, 10186, 20218, 20372, 40436, 425497, 850994, 1701988, 4680467, 9360934, 18721868]

約数ペア:

[(1, 18721868), (2, 9360934), (4, 4680467), (11, 1701988), (22, 850994), (44, 425497), (463, 40436), (919, 20372), (926, 20218), (1838, 10186), (1852, 10109), (3676, 5093)]