21000655228

素因数分解:

$2^2\times 7^1\times {\mathrm{587}}^1\times {\mathrm{1277723}}^1$

素因数の和:1278321

約数の個数: 24

約数和(自身を含む): 42072895872

約数和(自身を除く): 21072240644

約数列:

[1, 2, 4, 7, 14, 28, 587, 1174, 2348, 4109, 8218, 16436, 1277723, 2555446, 5110892, 8944061, 17888122, 35776244, 750023401, 1500046802, 3000093604, 5250163807, 10500327614, 21000655228]

約数ペア:

[(1, 21000655228), (2, 10500327614), (4, 5250163807), (7, 3000093604), (14, 1500046802), (28, 750023401), (587, 35776244), (1174, 17888122), (2348, 8944061), (4109, 5110892), (8218, 2555446), (16436, 1277723)]