40666521

素因数分解:

$3^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{4129}}^1$

素因数の和:4213

約数の個数: 24

約数和(自身を含む): 64031520

約数和(自身を除く): 23364999

約数列:

[1, 3, 7, 21, 49, 67, 147, 201, 469, 1407, 3283, 4129, 9849, 12387, 28903, 86709, 202321, 276643, 606963, 829929, 1936501, 5809503, 13555507, 40666521]

約数ペア:

[(1, 40666521), (3, 13555507), (7, 5809503), (21, 1936501), (49, 829929), (67, 606963), (147, 276643), (201, 202321), (469, 86709), (1407, 28903), (3283, 12387), (4129, 9849)]