42991209

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{647}}^1$

素因数の和:786

約数の個数: 32

約数和(自身を含む): 67184640

約数和(自身を除く): 24193431

約数列:

[1, 3, 9, 23, 27, 69, 107, 207, 321, 621, 647, 963, 1941, 2461, 2889, 5823, 7383, 14881, 17469, 22149, 44643, 66447, 69229, 133929, 207687, 401787, 623061, 1592267, 1869183, 4776801, 14330403, 42991209]

約数ペア:

[(1, 42991209), (3, 14330403), (9, 4776801), (23, 1869183), (27, 1592267), (69, 623061), (107, 401787), (207, 207687), (321, 133929), (621, 69229), (647, 66447), (963, 44643), (1941, 22149), (2461, 17469), (2889, 14881), (5823, 7383)]