18655677

素因数分解:

$3^4\times {\mathrm{109}}^1\times {\mathrm{2113}}^1$

素因数の和:2234

約数の個数: 20

約数和(自身を含む): 28137340

約数和(自身を除く): 9481663

約数列:

[1, 3, 9, 27, 81, 109, 327, 981, 2113, 2943, 6339, 8829, 19017, 57051, 171153, 230317, 690951, 2072853, 6218559, 18655677]

約数ペア:

[(1, 18655677), (3, 6218559), (9, 2072853), (27, 690951), (81, 230317), (109, 171153), (327, 57051), (981, 19017), (2113, 8829), (2943, 6339)]