81191889

素因数分解:

$3^5\times {\mathrm{47}}^1\times {\mathrm{7109}}^1$

素因数の和:7171

約数の個数: 24

約数和(自身を含む): 124225920

約数和(自身を除く): 43034031

約数列:

[1, 3, 9, 27, 47, 81, 141, 243, 423, 1269, 3807, 7109, 11421, 21327, 63981, 191943, 334123, 575829, 1002369, 1727487, 3007107, 9021321, 27063963, 81191889]

約数ペア:

[(1, 81191889), (3, 27063963), (9, 9021321), (27, 3007107), (47, 1727487), (81, 1002369), (141, 575829), (243, 334123), (423, 191943), (1269, 63981), (3807, 21327), (7109, 11421)]