21830067

素因数分解:

$3^4\times 7^1\times {\mathrm{38501}}^1$

素因数の和:38520

約数の個数: 20

約数和(自身を含む): 37269936

約数和(自身を除く): 15439869

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 38501, 115503, 269507, 346509, 808521, 1039527, 2425563, 3118581, 7276689, 21830067]

約数ペア:

[(1, 21830067), (3, 7276689), (7, 3118581), (9, 2425563), (21, 1039527), (27, 808521), (63, 346509), (81, 269507), (189, 115503), (567, 38501)]