187819821

素因数分解:

$3^2\times 7^1\times {\mathrm{1307}}^1\times {\mathrm{2281}}^1$

素因数の和:3601

約数の個数: 24

約数和(自身を含む): 310425024

約数和(自身を除く): 122605203

約数列:

[1, 3, 7, 9, 21, 63, 1307, 2281, 3921, 6843, 9149, 11763, 15967, 20529, 27447, 47901, 82341, 143703, 2981267, 8943801, 20868869, 26831403, 62606607, 187819821]

約数ペア:

[(1, 187819821), (3, 62606607), (7, 26831403), (9, 20868869), (21, 8943801), (63, 2981267), (1307, 143703), (2281, 82341), (3921, 47901), (6843, 27447), (9149, 20529), (11763, 15967)]