218977269

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{254329}}^1$

素因数の和:254380

約数の個数: 16

約数和(自身を含む): 341819520

約数和(自身を除く): 122842251

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 254329, 762987, 1780303, 5340909, 10427489, 31282467, 72992423, 218977269]

約数ペア:

[(1, 218977269), (3, 72992423), (7, 31282467), (21, 10427489), (41, 5340909), (123, 1780303), (287, 762987), (861, 254329)]