81351729

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{42437}}^1$

素因数の和:42517

約数の個数: 16

約数和(自身を含む): 122221440

約数和(自身を除く): 40869711

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 42437, 127311, 381933, 1145799, 3013027, 9039081, 27117243, 81351729]

約数ペア:

[(1, 81351729), (3, 27117243), (9, 9039081), (27, 3013027), (71, 1145799), (213, 381933), (639, 127311), (1917, 42437)]