2017649979

素因数分解:

$3^4\times {\mathrm{2131}}^1\times {\mathrm{11689}}^1$

素因数の和:13832

約数の個数: 20

約数和(自身を含む): 3015692680

約数和(自身を除く): 998042701

約数列:

[1, 3, 9, 27, 81, 2131, 6393, 11689, 19179, 35067, 57537, 105201, 172611, 315603, 946809, 24909259, 74727777, 224183331, 672549993, 2017649979]

約数ペア:

[(1, 2017649979), (3, 672549993), (9, 224183331), (27, 74727777), (81, 24909259), (2131, 946809), (6393, 315603), (11689, 172611), (19179, 105201), (35067, 57537)]