21639035

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{761}}^1$

素因数の和:835

約数の個数: 24

約数和(自身を含む): 29187648

約数和(自身を除く): 7548613

約数列:

[1, 5, 11, 47, 55, 121, 235, 517, 605, 761, 2585, 3805, 5687, 8371, 28435, 35767, 41855, 92081, 178835, 393437, 460405, 1967185, 4327807, 21639035]

約数ペア:

[(1, 21639035), (5, 4327807), (11, 1967185), (47, 460405), (55, 393437), (121, 178835), (235, 92081), (517, 41855), (605, 35767), (761, 28435), (2585, 8371), (3805, 5687)]