19925554

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{137}}^1\times {\mathrm{601}}^1$

素因数の和:762

約数の個数: 24

約数和(自身を含む): 33147324

約数和(自身を除く): 13221770

約数列:

[1, 2, 11, 22, 121, 137, 242, 274, 601, 1202, 1507, 3014, 6611, 13222, 16577, 33154, 72721, 82337, 145442, 164674, 905707, 1811414, 9962777, 19925554]

約数ペア:

[(1, 19925554), (2, 9962777), (11, 1811414), (22, 905707), (121, 164674), (137, 145442), (242, 82337), (274, 72721), (601, 33154), (1202, 16577), (1507, 13222), (3014, 6611)]