81440973

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{641}}^1\times {\mathrm{743}}^1$

素因数の和:1409

約数の個数: 24

約数和(自身を含む): 124188480

約数和(自身を除く): 42747507

約数列:

[1, 3, 9, 19, 57, 171, 641, 743, 1923, 2229, 5769, 6687, 12179, 14117, 36537, 42351, 109611, 127053, 476263, 1428789, 4286367, 9048997, 27146991, 81440973]

約数ペア:

[(1, 81440973), (3, 27146991), (9, 9048997), (19, 4286367), (57, 1428789), (171, 476263), (641, 127053), (743, 109611), (1923, 42351), (2229, 36537), (5769, 14117), (6687, 12179)]