21379527

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{359}}^1\times {\mathrm{509}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 33415200

約数和(自身を除く): 12035673

約数列:

[1, 3, 9, 13, 39, 117, 359, 509, 1077, 1527, 3231, 4581, 4667, 6617, 14001, 19851, 42003, 59553, 182731, 548193, 1644579, 2375503, 7126509, 21379527]

約数ペア:

[(1, 21379527), (3, 7126509), (9, 2375503), (13, 1644579), (39, 548193), (117, 182731), (359, 59553), (509, 42003), (1077, 19851), (1527, 14001), (3231, 6617), (4581, 4667)]