81340903

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{263}}^1$

素因数の和:423

約数の個数: 32

約数和(自身を含む): 104011776

約数和(自身を除く): 22670873

約数列:

[1, 7, 17, 23, 113, 119, 161, 263, 391, 791, 1841, 1921, 2599, 2737, 4471, 6049, 13447, 18193, 29719, 31297, 42343, 44183, 102833, 208033, 309281, 505223, 683537, 719831, 3536561, 4784759, 11620129, 81340903]

約数ペア:

[(1, 81340903), (7, 11620129), (17, 4784759), (23, 3536561), (113, 719831), (119, 683537), (161, 505223), (263, 309281), (391, 208033), (791, 102833), (1841, 44183), (1921, 42343), (2599, 31297), (2737, 29719), (4471, 18193), (6049, 13447)]