18089919

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:404

約数の個数: 32

約数和(自身を含む): 28512000

約数和(自身を除く): 10422081

約数列:

[1, 3, 9, 19, 27, 57, 171, 179, 197, 513, 537, 591, 1611, 1773, 3401, 3743, 4833, 5319, 10203, 11229, 30609, 33687, 35263, 91827, 101061, 105789, 317367, 669997, 952101, 2009991, 6029973, 18089919]

約数ペア:

[(1, 18089919), (3, 6029973), (9, 2009991), (19, 952101), (27, 669997), (57, 317367), (171, 105789), (179, 101061), (197, 91827), (513, 35263), (537, 33687), (591, 30609), (1611, 11229), (1773, 10203), (3401, 5319), (3743, 4833)]