21000643195

素因数分解:

$5^1\times 7^3\times {\mathrm{59}}^1\times {\mathrm{207547}}^1$

素因数の和:207632

約数の個数: 32

約数和(自身を含む): 29886912000

約数和(自身を除く): 8886268805

約数列:

[1, 5, 7, 35, 49, 59, 245, 295, 343, 413, 1715, 2065, 2891, 14455, 20237, 101185, 207547, 1037735, 1452829, 7264145, 10169803, 12245273, 50849015, 61226365, 71188621, 85716911, 355943105, 428584555, 600018377, 3000091885, 4200128639, 21000643195]

約数ペア:

[(1, 21000643195), (5, 4200128639), (7, 3000091885), (35, 600018377), (49, 428584555), (59, 355943105), (245, 85716911), (295, 71188621), (343, 61226365), (413, 50849015), (1715, 12245273), (2065, 10169803), (2891, 7264145), (14455, 1452829), (20237, 1037735), (101185, 207547)]