19039420

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{3061}}^1$

素因数の和:3381

約数の個数: 24

約数和(自身を含む): 40124448

約数和(自身を除く): 21085028

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3061, 3110, 6122, 6220, 12244, 15305, 30610, 61220, 951971, 1903942, 3807884, 4759855, 9519710, 19039420]

約数ペア:

[(1, 19039420), (2, 9519710), (4, 4759855), (5, 3807884), (10, 1903942), (20, 951971), (311, 61220), (622, 30610), (1244, 15305), (1555, 12244), (3061, 6220), (3110, 6122)]