21977788

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{34127}}^1$

素因数の和:34161

約数の個数: 24

約数和(自身を含む): 45868032

約数和(自身を除く): 23890244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 34127, 68254, 136508, 238889, 477778, 784921, 955556, 1569842, 3139684, 5494447, 10988894, 21977788]

約数ペア:

[(1, 21977788), (2, 10988894), (4, 5494447), (7, 3139684), (14, 1569842), (23, 955556), (28, 784921), (46, 477778), (92, 238889), (161, 136508), (322, 68254), (644, 34127)]