18818721

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{110051}}^1$

素因数の和:110076

約数の個数: 12

約数和(自身を含む): 28613520

約数和(自身を除く): 9794799

約数列:

[1, 3, 9, 19, 57, 171, 110051, 330153, 990459, 2090969, 6272907, 18818721]

約数ペア:

[(1, 18818721), (3, 6272907), (9, 2090969), (19, 990459), (57, 330153), (171, 110051)]