1213443987

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{434459}}^1$

素因数の和:434495

約数の個数: 24

約数和(自身を含む): 1981137600

約数和(自身を除く): 767693613

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 434459, 1303377, 3041213, 8254721, 9123639, 21288491, 24764163, 57783047, 63865473, 173349141, 404481329, 1213443987]

約数ペア:

[(1, 1213443987), (3, 404481329), (7, 173349141), (19, 63865473), (21, 57783047), (49, 24764163), (57, 21288491), (133, 9123639), (147, 8254721), (399, 3041213), (931, 1303377), (2793, 434459)]