21560168

素因数分解:

$2^3\times 7^1\times {\mathrm{439}}^1\times {\mathrm{877}}^1$

素因数の和:1329

約数の個数: 32

約数和(自身を含む): 46358400

約数和(自身を除く): 24798232

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 439, 877, 878, 1754, 1756, 3073, 3508, 3512, 6139, 6146, 7016, 12278, 12292, 24556, 24584, 49112, 385003, 770006, 1540012, 2695021, 3080024, 5390042, 10780084, 21560168]

約数ペア:

[(1, 21560168), (2, 10780084), (4, 5390042), (7, 3080024), (8, 2695021), (14, 1540012), (28, 770006), (56, 385003), (439, 49112), (877, 24584), (878, 24556), (1754, 12292), (1756, 12278), (3073, 7016), (3508, 6146), (3512, 6139)]