21181468

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{68771}}^1$

素因数の和:68793

約数の個数: 24

約数和(自身を含む): 46214784

約数和(自身を除く): 25033316

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 68771, 137542, 275084, 481397, 756481, 962794, 1512962, 1925588, 3025924, 5295367, 10590734, 21181468]

約数ペア:

[(1, 21181468), (2, 10590734), (4, 5295367), (7, 3025924), (11, 1925588), (14, 1512962), (22, 962794), (28, 756481), (44, 481397), (77, 275084), (154, 137542), (308, 68771)]