2840187

素因数分解:

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

素因数の和:295

約数の個数: 18

約数和(自身を含む): 4437108

約数和(自身を除く): 1596921

約数列:

[1, 3, 7, 21, 49, 139, 147, 417, 973, 2919, 6811, 19321, 20433, 57963, 135247, 405741, 946729, 2840187]

約数ペア:

[(1, 2840187), (3, 946729), (7, 405741), (21, 135247), (49, 57963), (139, 20433), (147, 19321), (417, 6811), (973, 2919)]