1921563

素因数分解:

$3^4\times 7^1\times {\mathrm{3389}}^1$

素因数の和:3408

約数の個数: 20

約数和(自身を含む): 3281520

約数和(自身を除く): 1359957

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 3389, 10167, 23723, 30501, 71169, 91503, 213507, 274509, 640521, 1921563]

約数ペア:

[(1, 1921563), (3, 640521), (7, 274509), (9, 213507), (21, 91503), (27, 71169), (63, 30501), (81, 23723), (189, 10167), (567, 3389)]