20940957

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1061}}^1$

素因数の和:1130

約数の個数: 32

約数和(自身を含む): 33644160

約数和(自身を除く): 12703203

約数列:

[1, 3, 9, 17, 27, 43, 51, 129, 153, 387, 459, 731, 1061, 1161, 2193, 3183, 6579, 9549, 18037, 19737, 28647, 45623, 54111, 136869, 162333, 410607, 486999, 775591, 1231821, 2326773, 6980319, 20940957]

約数ペア:

[(1, 20940957), (3, 6980319), (9, 2326773), (17, 1231821), (27, 775591), (43, 486999), (51, 410607), (129, 162333), (153, 136869), (387, 54111), (459, 45623), (731, 28647), (1061, 19737), (1161, 18037), (2193, 9549), (3183, 6579)]