21000355040

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18750317}}^1$

素因数の和:18750339

約数の個数: 48

約数和(自身を含む): 56700961632

約数和(自身を除く): 35700606592

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18750317, 37500634, 75001268, 93751585, 131252219, 150002536, 187503170, 262504438, 300005072, 375006340, 525008876, 600010144, 656261095, 750012680, 1050017752, 1312522190, 1500025360, 2100035504, 2625044380, 3000050720, 4200071008, 5250088760, 10500177520, 21000355040]

約数ペア:

[(1, 21000355040), (2, 10500177520), (4, 5250088760), (5, 4200071008), (7, 3000050720), (8, 2625044380), (10, 2100035504), (14, 1500025360), (16, 1312522190), (20, 1050017752), (28, 750012680), (32, 656261095), (35, 600010144), (40, 525008876), (56, 375006340), (70, 300005072), (80, 262504438), (112, 187503170), (140, 150002536), (160, 131252219), (224, 93751585), (280, 75001268), (560, 37500634), (1120, 18750317)]