18020877

素因数分解:

$3^1\times 7^3\times {\mathrm{83}}^1\times {\mathrm{211}}^1$

素因数の和:318

約数の個数: 32

約数和(自身を含む): 28492800

約数和(自身を除く): 10471923

約数列:

[1, 3, 7, 21, 49, 83, 147, 211, 249, 343, 581, 633, 1029, 1477, 1743, 4067, 4431, 10339, 12201, 17513, 28469, 31017, 52539, 72373, 85407, 122591, 217119, 367773, 858137, 2574411, 6006959, 18020877]

約数ペア:

[(1, 18020877), (3, 6006959), (7, 2574411), (21, 858137), (49, 367773), (83, 217119), (147, 122591), (211, 85407), (249, 72373), (343, 52539), (581, 31017), (633, 28469), (1029, 17513), (1477, 12201), (1743, 10339), (4067, 4431)]