81215979

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71809}}^1$

素因数の和:71854

約数の個数: 16

約数和(自身を含む): 120640800

約数和(自身を除く): 39424821

約数列:

[1, 3, 13, 29, 39, 87, 377, 1131, 71809, 215427, 933517, 2082461, 2800551, 6247383, 27071993, 81215979]

約数ペア:

[(1, 81215979), (3, 27071993), (13, 6247383), (29, 2800551), (39, 2082461), (87, 933517), (377, 215427), (1131, 71809)]