18783556

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{197}}^2$

素因数の和:420

約数の個数: 27

約数和(自身を含む): 36315517

約数和(自身を除く): 17531961

約数列:

[1, 2, 4, 11, 22, 44, 121, 197, 242, 394, 484, 788, 2167, 4334, 8668, 23837, 38809, 47674, 77618, 95348, 155236, 426899, 853798, 1707596, 4695889, 9391778, 18783556]

約数ペア:

[(1, 18783556), (2, 9391778), (4, 4695889), (11, 1707596), (22, 853798), (44, 426899), (121, 155236), (197, 95348), (242, 77618), (394, 47674), (484, 38809), (788, 23837), (2167, 8668)]