21133280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18869}}^1$

素因数の和:18891

約数の個数: 48

約数和(自身を含む): 57062880

約数和(自身を除く): 35929600

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, 18869, 37738, 75476, 94345, 132083, 150952, 188690, 264166, 301904, 377380, 528332, 603808, 660415, 754760, 1056664, 1320830, 1509520, 2113328, 2641660, 3019040, 4226656, 5283320, 10566640, 21133280]

約数ペア:

[(1, 21133280), (2, 10566640), (4, 5283320), (5, 4226656), (7, 3019040), (8, 2641660), (10, 2113328), (14, 1509520), (16, 1320830), (20, 1056664), (28, 754760), (32, 660415), (35, 603808), (40, 528332), (56, 377380), (70, 301904), (80, 264166), (112, 188690), (140, 150952), (160, 132083), (224, 94345), (280, 75476), (560, 37738), (1120, 18869)]