155332989

素因数分解:

$3^2\times 7^2\times {\mathrm{352229}}^1$

素因数の和:352249

約数の個数: 18

約数和(自身を含む): 261002430

約数和(自身を除く): 105669441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 352229, 1056687, 2465603, 3170061, 7396809, 17259221, 22190427, 51777663, 155332989]

約数ペア:

[(1, 155332989), (3, 51777663), (7, 22190427), (9, 17259221), (21, 7396809), (49, 3170061), (63, 2465603), (147, 1056687), (441, 352229)]