28378287

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{26497}}^1$

素因数の和:26527

約数の個数: 24

約数和(自身を含む): 49604256

約数和(自身を除く): 21225969

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 26497, 79491, 185479, 238473, 450449, 556437, 1351347, 1669311, 3153143, 4054041, 9459429, 28378287]

約数ペア:

[(1, 28378287), (3, 9459429), (7, 4054041), (9, 3153143), (17, 1669311), (21, 1351347), (51, 556437), (63, 450449), (119, 238473), (153, 185479), (357, 79491), (1071, 26497)]