21049413

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{311}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 35223552

約数和(自身を除く): 14174139

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 293, 311, 879, 933, 2051, 2177, 3223, 3421, 6153, 6531, 9669, 10263, 22561, 23947, 67683, 71841, 91123, 273369, 637861, 1002353, 1913583, 3007059, 7016471, 21049413]

約数ペア:

[(1, 21049413), (3, 7016471), (7, 3007059), (11, 1913583), (21, 1002353), (33, 637861), (77, 273369), (231, 91123), (293, 71841), (311, 67683), (879, 23947), (933, 22561), (2051, 10263), (2177, 9669), (3223, 6531), (3421, 6153)]