20925669

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 30689280

約数和(自身を除く): 9763611

約数列:

[1, 3, 19, 47, 57, 73, 107, 141, 219, 321, 893, 1387, 2033, 2679, 3431, 4161, 5029, 6099, 7811, 10293, 15087, 23433, 65189, 95551, 148409, 195567, 286653, 367117, 445227, 1101351, 6975223, 20925669]

約数ペア:

[(1, 20925669), (3, 6975223), (19, 1101351), (47, 445227), (57, 367117), (73, 286653), (107, 195567), (141, 148409), (219, 95551), (321, 65189), (893, 23433), (1387, 15087), (2033, 10293), (2679, 7811), (3431, 6099), (4161, 5029)]