21280550

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{11503}}^1$

素因数の和:11552

約数の個数: 24

約数和(自身を含む): 40655136

約数和(自身を除く): 19374586

約数列:

[1, 2, 5, 10, 25, 37, 50, 74, 185, 370, 925, 1850, 11503, 23006, 57515, 115030, 287575, 425611, 575150, 851222, 2128055, 4256110, 10640275, 21280550]

約数ペア:

[(1, 21280550), (2, 10640275), (5, 4256110), (10, 2128055), (25, 851222), (37, 575150), (50, 425611), (74, 287575), (185, 115030), (370, 57515), (925, 23006), (1850, 11503)]