20792709

素因数分解:

$3^2\times 7^2\times {\mathrm{47149}}^1$

素因数の和:47169

約数の個数: 18

約数和(自身を含む): 34938150

約数和(自身を除く): 14145441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 47149, 141447, 330043, 424341, 990129, 2310301, 2970387, 6930903, 20792709]

約数ペア:

[(1, 20792709), (3, 6930903), (7, 2970387), (9, 2310301), (21, 990129), (49, 424341), (63, 330043), (147, 141447), (441, 47149)]