20172787999

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{76679}}^1$

素因数の和:76772

約数の個数: 32

約数和(自身を含む): 25764480000

約数和(自身を除く): 5591692001

約数列:

[1, 7, 13, 49, 59, 91, 343, 413, 637, 767, 2891, 4459, 5369, 20237, 37583, 76679, 263081, 536753, 996827, 3757271, 4524061, 6977789, 26300897, 31668427, 48844523, 58812793, 221678989, 341911661, 411689551, 1551752923, 2881826857, 20172787999]

約数ペア:

[(1, 20172787999), (7, 2881826857), (13, 1551752923), (49, 411689551), (59, 341911661), (91, 221678989), (343, 58812793), (413, 48844523), (637, 31668427), (767, 26300897), (2891, 6977789), (4459, 4524061), (5369, 3757271), (20237, 996827), (37583, 536753), (76679, 263081)]