19977992

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{8641}}^1$

素因数の和:8681

約数の個数: 24

約数和(自身を含む): 39796410

約数和(自身を除く): 19818418

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 289, 578, 1156, 2312, 8641, 17282, 34564, 69128, 146897, 293794, 587588, 1175176, 2497249, 4994498, 9988996, 19977992]

約数ペア:

[(1, 19977992), (2, 9988996), (4, 4994498), (8, 2497249), (17, 1175176), (34, 587588), (68, 293794), (136, 146897), (289, 69128), (578, 34564), (1156, 17282), (2312, 8641)]