25288131

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 38304000

約数和(自身を除く): 13015869

約数列:

[1, 3, 11, 33, 37, 111, 139, 149, 407, 417, 447, 1221, 1529, 1639, 4587, 4917, 5143, 5513, 15429, 16539, 20711, 56573, 60643, 62133, 169719, 181929, 227821, 683463, 766307, 2298921, 8429377, 25288131]

約数ペア:

[(1, 25288131), (3, 8429377), (11, 2298921), (33, 766307), (37, 683463), (111, 227821), (139, 181929), (149, 169719), (407, 62133), (417, 60643), (447, 56573), (1221, 20711), (1529, 16539), (1639, 15429), (4587, 5513), (4917, 5143)]