21146943

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{271}}^1$

素因数の和:367

約数の個数: 24

約数和(自身を含む): 30616320

約数和(自身を除く): 9469377

約数列:

[1, 3, 19, 37, 57, 111, 271, 703, 813, 1369, 2109, 4107, 5149, 10027, 15447, 26011, 30081, 78033, 190513, 370999, 571539, 1112997, 7048981, 21146943]

約数ペア:

[(1, 21146943), (3, 7048981), (19, 1112997), (37, 571539), (57, 370999), (111, 190513), (271, 78033), (703, 30081), (813, 26011), (1369, 15447), (2109, 10027), (4107, 5149)]