25278687

素因数分解:

$3^2\times 7^1\times {\mathrm{307}}^1\times {\mathrm{1307}}^1$

素因数の和:1627

約数の個数: 24

約数和(自身を含む): 41897856

約数和(自身を除く): 16619169

約数列:

[1, 3, 7, 9, 21, 63, 307, 921, 1307, 2149, 2763, 3921, 6447, 9149, 11763, 19341, 27447, 82341, 401249, 1203747, 2808743, 3611241, 8426229, 25278687]

約数ペア:

[(1, 25278687), (3, 8426229), (7, 3611241), (9, 2808743), (21, 1203747), (63, 401249), (307, 82341), (921, 27447), (1307, 19341), (2149, 11763), (2763, 9149), (3921, 6447)]