81520317

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{158909}}^1$

素因数の和:158937

約数の個数: 16

約数和(自身を含む): 127128000

約数和(自身を除く): 45607683

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 158909, 476727, 1430181, 3019271, 4290543, 9057813, 27173439, 81520317]

約数ペア:

[(1, 81520317), (3, 27173439), (9, 9057813), (19, 4290543), (27, 3019271), (57, 1430181), (171, 476727), (513, 158909)]