21152068

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{16073}}^1$

素因数の和:16131

約数の個数: 24

約数和(自身を含む): 43206912

約数和(自身を除く): 22054844

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 16073, 32146, 64292, 112511, 225022, 450044, 755431, 1510862, 3021724, 5288017, 10576034, 21152068]

約数ペア:

[(1, 21152068), (2, 10576034), (4, 5288017), (7, 3021724), (14, 1510862), (28, 755431), (47, 450044), (94, 225022), (188, 112511), (329, 64292), (658, 32146), (1316, 16073)]