138593997

素因数分解:

$3^4\times {\mathrm{107}}^1\times {\mathrm{15991}}^1$

素因数の和:16110

約数の個数: 20

約数和(自身を含む): 208983456

約数和(自身を除く): 70389459

約数列:

[1, 3, 9, 27, 81, 107, 321, 963, 2889, 8667, 15991, 47973, 143919, 431757, 1295271, 1711037, 5133111, 15399333, 46197999, 138593997]

約数ペア:

[(1, 138593997), (3, 46197999), (9, 15399333), (27, 5133111), (81, 1711037), (107, 1295271), (321, 431757), (963, 143919), (2889, 47973), (8667, 15991)]