21296277

素因数分解:

$3^6\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:372

約数の個数: 28

約数和(自身を含む): 32317824

約数和(自身を除く): 11021547

約数列:

[1, 3, 9, 27, 81, 131, 223, 243, 393, 669, 729, 1179, 2007, 3537, 6021, 10611, 18063, 29213, 31833, 54189, 87639, 95499, 162567, 262917, 788751, 2366253, 7098759, 21296277]

約数ペア:

[(1, 21296277), (3, 7098759), (9, 2366253), (27, 788751), (81, 262917), (131, 162567), (223, 95499), (243, 87639), (393, 54189), (669, 31833), (729, 29213), (1179, 18063), (2007, 10611), (3537, 6021)]