20884635

素因数分解:

$3^5\times 5^1\times {\mathrm{17189}}^1$

素因数の和:17209

約数の個数: 24

約数和(自身を含む): 37542960

約数和(自身を除く): 16658325

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 17189, 51567, 85945, 154701, 257835, 464103, 773505, 1392309, 2320515, 4176927, 6961545, 20884635]

約数ペア:

[(1, 20884635), (3, 6961545), (5, 4176927), (9, 2320515), (15, 1392309), (27, 773505), (45, 464103), (81, 257835), (135, 154701), (243, 85945), (405, 51567), (1215, 17189)]