18189916

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3371}}^1$

素因数の和:3465

約数の個数: 24

約数和(自身を含む): 33989760

約数和(自身を除く): 15799844

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 284, 1349, 2698, 3371, 5396, 6742, 13484, 64049, 128098, 239341, 256196, 478682, 957364, 4547479, 9094958, 18189916]

約数ペア:

[(1, 18189916), (2, 9094958), (4, 4547479), (19, 957364), (38, 478682), (71, 256196), (76, 239341), (142, 128098), (284, 64049), (1349, 13484), (2698, 6742), (3371, 5396)]