21056332

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{283}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 42940800

約数和(自身を除く): 21884468

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 89, 178, 209, 283, 356, 418, 566, 836, 979, 1132, 1691, 1958, 3113, 3382, 3916, 5377, 6226, 6764, 10754, 12452, 18601, 21508, 25187, 37202, 50374, 59147, 74404, 100748, 118294, 236588, 277057, 478553, 554114, 957106, 1108228, 1914212, 5264083, 10528166, 21056332]

約数ペア:

[(1, 21056332), (2, 10528166), (4, 5264083), (11, 1914212), (19, 1108228), (22, 957106), (38, 554114), (44, 478553), (76, 277057), (89, 236588), (178, 118294), (209, 100748), (283, 74404), (356, 59147), (418, 50374), (566, 37202), (836, 25187), (979, 21508), (1132, 18601), (1691, 12452), (1958, 10754), (3113, 6764), (3382, 6226), (3916, 5377)]