20069721

素因数分解:

$3^3\times 7^1\times {\mathrm{106189}}^1$

素因数の和:106205

約数の個数: 16

約数和(自身を含む): 33980800

約数和(自身を除く): 13911079

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 106189, 318567, 743323, 955701, 2229969, 2867103, 6689907, 20069721]

約数ペア:

[(1, 20069721), (3, 6689907), (7, 2867103), (9, 2229969), (21, 955701), (27, 743323), (63, 318567), (189, 106189)]