21787404

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{106801}}^1$

素因数の和:106825

約数の個数: 24

約数和(自身を含む): 53828208

約数和(自身を除く): 32040804

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204, 106801, 213602, 320403, 427204, 640806, 1281612, 1815617, 3631234, 5446851, 7262468, 10893702, 21787404]

約数ペア:

[(1, 21787404), (2, 10893702), (3, 7262468), (4, 5446851), (6, 3631234), (12, 1815617), (17, 1281612), (34, 640806), (51, 427204), (68, 320403), (102, 213602), (204, 106801)]