18140397

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{179}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 9438483

約数列:

[1, 3, 11, 33, 37, 83, 111, 179, 249, 407, 537, 913, 1221, 1969, 2739, 3071, 5907, 6623, 9213, 14857, 19869, 33781, 44571, 72853, 101343, 163427, 218559, 490281, 549709, 1649127, 6046799, 18140397]

約数ペア:

[(1, 18140397), (3, 6046799), (11, 1649127), (33, 549709), (37, 490281), (83, 218559), (111, 163427), (179, 101343), (249, 72853), (407, 44571), (537, 33781), (913, 19869), (1221, 14857), (1969, 9213), (2739, 6623), (3071, 5907)]