1661541

素因数分解:

$3^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:233

約数の個数: 24

約数和(自身を含む): 2626560

約数和(自身を除く): 965019

約数列:

[1, 3, 7, 21, 49, 89, 127, 147, 267, 381, 623, 889, 1869, 2667, 4361, 6223, 11303, 13083, 18669, 33909, 79121, 237363, 553847, 1661541]

約数ペア:

[(1, 1661541), (3, 553847), (7, 237363), (21, 79121), (49, 33909), (89, 18669), (127, 13083), (147, 11303), (267, 6223), (381, 4361), (623, 2667), (889, 1869)]