81848637

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4091}}^1$

素因数の和:4135

約数の個数: 40

約数和(自身を含む): 138636960

約数和(自身を除く): 56788323

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 171, 247, 351, 513, 741, 1053, 1539, 2223, 4091, 6669, 12273, 20007, 36819, 53183, 77729, 110457, 159549, 233187, 331371, 478647, 699561, 1010477, 1435941, 2098683, 3031431, 4307823, 6296049, 9094293, 27282879, 81848637]

約数ペア:

[(1, 81848637), (3, 27282879), (9, 9094293), (13, 6296049), (19, 4307823), (27, 3031431), (39, 2098683), (57, 1435941), (81, 1010477), (117, 699561), (171, 478647), (247, 331371), (351, 233187), (513, 159549), (741, 110457), (1053, 77729), (1539, 53183), (2223, 36819), (4091, 20007), (6669, 12273)]