8221563

素因数分解:

$3^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:304

約数の個数: 36

約数和(自身を含む): 14025648

約数和(自身を除く): 5804085

約数列:

[1, 3, 7, 9, 21, 49, 63, 103, 147, 181, 309, 441, 543, 721, 927, 1267, 1629, 2163, 3801, 5047, 6489, 8869, 11403, 15141, 18643, 26607, 45423, 55929, 79821, 130501, 167787, 391503, 913507, 1174509, 2740521, 8221563]

約数ペア:

[(1, 8221563), (3, 2740521), (7, 1174509), (9, 913507), (21, 391503), (49, 167787), (63, 130501), (103, 79821), (147, 55929), (181, 45423), (309, 26607), (441, 18643), (543, 15141), (721, 11403), (927, 8869), (1267, 6489), (1629, 5047), (2163, 3801)]