26804421

素因数分解:

$3^2\times 7^3\times {\mathrm{19}}^1\times {\mathrm{457}}^1$

素因数の和:503

約数の個数: 48

約数和(自身を含む): 47632000

約数和(自身を除く): 20827579

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 343, 399, 441, 457, 931, 1029, 1197, 1371, 2793, 3087, 3199, 4113, 6517, 8379, 8683, 9597, 19551, 22393, 26049, 28791, 58653, 60781, 67179, 78147, 156751, 182343, 201537, 425467, 470253, 547029, 1276401, 1410759, 2978269, 3829203, 8934807, 26804421]

約数ペア:

[(1, 26804421), (3, 8934807), (7, 3829203), (9, 2978269), (19, 1410759), (21, 1276401), (49, 547029), (57, 470253), (63, 425467), (133, 201537), (147, 182343), (171, 156751), (343, 78147), (399, 67179), (441, 60781), (457, 58653), (931, 28791), (1029, 26049), (1197, 22393), (1371, 19551), (2793, 9597), (3087, 8683), (3199, 8379), (4113, 6517)]