7212849

素因数分解:

$3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{353}}^1$

素因数の和:509

約数の個数: 24

約数和(自身を含む): 11299680

約数和(自身を除く): 4086831

約数列:

[1, 3, 7, 21, 49, 139, 147, 353, 417, 973, 1059, 2471, 2919, 6811, 7413, 17297, 20433, 49067, 51891, 147201, 343469, 1030407, 2404283, 7212849]

約数ペア:

[(1, 7212849), (3, 2404283), (7, 1030407), (21, 343469), (49, 147201), (139, 51891), (147, 49067), (353, 20433), (417, 17297), (973, 7413), (1059, 6811), (2471, 2919)]