18704133

素因数分解:

$3^2\times 7^3\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:183

約数の個数: 48

約数和(自身を含む): 32323200

約数和(自身を除く): 13619067

約数列:

[1, 3, 7, 9, 21, 49, 63, 73, 83, 147, 219, 249, 343, 441, 511, 581, 657, 747, 1029, 1533, 1743, 3087, 3577, 4067, 4599, 5229, 6059, 10731, 12201, 18177, 25039, 28469, 32193, 36603, 42413, 54531, 75117, 85407, 127239, 225351, 256221, 296891, 381717, 890673, 2078237, 2672019, 6234711, 18704133]

約数ペア:

[(1, 18704133), (3, 6234711), (7, 2672019), (9, 2078237), (21, 890673), (49, 381717), (63, 296891), (73, 256221), (83, 225351), (147, 127239), (219, 85407), (249, 75117), (343, 54531), (441, 42413), (511, 36603), (581, 32193), (657, 28469), (747, 25039), (1029, 18177), (1533, 12201), (1743, 10731), (3087, 6059), (3577, 5229), (4067, 4599)]