19791639

素因数分解:

$3^2\times 7^2\times {\mathrm{44879}}^1$

素因数の和:44899

約数の個数: 18

約数和(自身を含む): 33256080

約数和(自身を除く): 13464441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 44879, 134637, 314153, 403911, 942459, 2199071, 2827377, 6597213, 19791639]

約数ペア:

[(1, 19791639), (3, 6597213), (7, 2827377), (9, 2199071), (21, 942459), (49, 403911), (63, 314153), (147, 134637), (441, 44879)]