81453911

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{337}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 105650688

約数和(自身を除く): 24196777

約数列:

[1, 7, 11, 43, 73, 77, 301, 337, 473, 511, 803, 2359, 3139, 3311, 3707, 5621, 14491, 21973, 24601, 25949, 34529, 101437, 159401, 172207, 241703, 270611, 1057843, 1115807, 1894277, 7404901, 11636273, 81453911]

約数ペア:

[(1, 81453911), (7, 11636273), (11, 7404901), (43, 1894277), (73, 1115807), (77, 1057843), (301, 270611), (337, 241703), (473, 172207), (511, 159401), (803, 101437), (2359, 34529), (3139, 25949), (3311, 24601), (3707, 21973), (5621, 14491)]