21975003

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{21997}}^1$

素因数の和:22043

約数の個数: 16

約数和(自身を含む): 33436960

約数和(自身を除く): 11461957

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 21997, 65991, 197973, 593919, 813889, 2441667, 7325001, 21975003]

約数ペア:

[(1, 21975003), (3, 7325001), (9, 2441667), (27, 813889), (37, 593919), (111, 197973), (333, 65991), (999, 21997)]