40278609

素因数分解:

$3^2\times 7^1\times {\mathrm{457}}^1\times {\mathrm{1399}}^1$

素因数の和:1869

約数の個数: 24

約数和(自身を含む): 66684800

約数和(自身を除く): 26406191

約数列:

[1, 3, 7, 9, 21, 63, 457, 1371, 1399, 3199, 4113, 4197, 9597, 9793, 12591, 28791, 29379, 88137, 639343, 1918029, 4475401, 5754087, 13426203, 40278609]

約数ペア:

[(1, 40278609), (3, 13426203), (7, 5754087), (9, 4475401), (21, 1918029), (63, 639343), (457, 88137), (1371, 29379), (1399, 28791), (3199, 12591), (4113, 9793), (4197, 9597)]