81579879

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{613}}^1$

素因数の和:709

約数の個数: 40

約数和(自身を含む): 128380032

約数和(自身を除く): 46800153

約数列:

[1, 3, 9, 27, 31, 53, 81, 93, 159, 279, 477, 613, 837, 1431, 1643, 1839, 2511, 4293, 4929, 5517, 14787, 16551, 19003, 32489, 44361, 49653, 57009, 97467, 133083, 171027, 292401, 513081, 877203, 1007159, 1539243, 2631609, 3021477, 9064431, 27193293, 81579879]

約数ペア:

[(1, 81579879), (3, 27193293), (9, 9064431), (27, 3021477), (31, 2631609), (53, 1539243), (81, 1007159), (93, 877203), (159, 513081), (279, 292401), (477, 171027), (613, 133083), (837, 97467), (1431, 57009), (1643, 49653), (1839, 44361), (2511, 32489), (4293, 19003), (4929, 16551), (5517, 14787)]