1921000420

素因数分解:

$2^2\times 5^1\times {\mathrm{96050021}}^1$

素因数の和:96050030

約数の個数: 12

約数和(自身を含む): 4034100924

約数和(自身を除く): 2113100504

約数列:

[1, 2, 4, 5, 10, 20, 96050021, 192100042, 384200084, 480250105, 960500210, 1921000420]

約数ペア:

[(1, 1921000420), (2, 960500210), (4, 480250105), (5, 384200084), (10, 192100042), (20, 96050021)]