3207981

素因数分解:

$3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:313

約数の個数: 24

約数和(自身を含む): 5043360

約数和(自身を除く): 1835379

約数列:

[1, 3, 7, 21, 49, 139, 147, 157, 417, 471, 973, 1099, 2919, 3297, 6811, 7693, 20433, 21823, 23079, 65469, 152761, 458283, 1069327, 3207981]

約数ペア:

[(1, 3207981), (3, 1069327), (7, 458283), (21, 152761), (49, 65469), (139, 23079), (147, 21823), (157, 20433), (417, 7693), (471, 6811), (973, 3297), (1099, 2919)]