21544040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{76943}}^1$

素因数の和:76961

約数の個数: 32

約数和(自身を含む): 55399680

約数和(自身を除く): 33855640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 76943, 153886, 307772, 384715, 538601, 615544, 769430, 1077202, 1538860, 2154404, 2693005, 3077720, 4308808, 5386010, 10772020, 21544040]

約数ペア:

[(1, 21544040), (2, 10772020), (4, 5386010), (5, 4308808), (7, 3077720), (8, 2693005), (10, 2154404), (14, 1538860), (20, 1077202), (28, 769430), (35, 615544), (40, 538601), (56, 384715), (70, 307772), (140, 153886), (280, 76943)]