27778401

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{6581}}^1$

素因数の和:6661

約数の個数: 24

約数和(自身を含む): 46547904

約数和(自身を除く): 18769503

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 6581, 19743, 46067, 59229, 138201, 414603, 440927, 1322781, 3086489, 3968343, 9259467, 27778401]

約数ペア:

[(1, 27778401), (3, 9259467), (7, 3968343), (9, 3086489), (21, 1322781), (63, 440927), (67, 414603), (201, 138201), (469, 59229), (603, 46067), (1407, 19743), (4221, 6581)]