81875031

素因数分解:

$3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{4007}}^1$

素因数の和:4163

約数の個数: 24

約数和(自身を含む): 127935360

約数和(自身を除く): 46060329

約数列:

[1, 3, 7, 21, 49, 139, 147, 417, 973, 2919, 4007, 6811, 12021, 20433, 28049, 84147, 196343, 556973, 589029, 1670919, 3898811, 11696433, 27291677, 81875031]

約数ペア:

[(1, 81875031), (3, 27291677), (7, 11696433), (21, 3898811), (49, 1670919), (139, 589029), (147, 556973), (417, 196343), (973, 84147), (2919, 28049), (4007, 20433), (6811, 12021)]