18714717

素因数分解:

$3^2\times 7^2\times {\mathrm{42437}}^1$

素因数の和:42457

約数の個数: 18

約数和(自身を含む): 31446558

約数和(自身を除く): 12731841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 42437, 127311, 297059, 381933, 891177, 2079413, 2673531, 6238239, 18714717]

約数ペア:

[(1, 18714717), (3, 6238239), (7, 2673531), (9, 2079413), (21, 891177), (49, 381933), (63, 297059), (147, 127311), (441, 42437)]