81282747

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{619}}^1$

素因数の和:692

約数の個数: 48

約数和(自身を含む): 137967360

約数和(自身を除く): 56684613

約数列:

[1, 3, 7, 13, 21, 37, 39, 91, 111, 169, 259, 273, 481, 507, 619, 777, 1183, 1443, 1857, 3367, 3549, 4333, 6253, 8047, 10101, 12999, 18759, 22903, 24141, 43771, 56329, 68709, 104611, 131313, 160321, 168987, 297739, 313833, 480963, 732277, 893217, 2084173, 2196831, 3870607, 6252519, 11611821, 27094249, 81282747]

約数ペア:

[(1, 81282747), (3, 27094249), (7, 11611821), (13, 6252519), (21, 3870607), (37, 2196831), (39, 2084173), (91, 893217), (111, 732277), (169, 480963), (259, 313833), (273, 297739), (481, 168987), (507, 160321), (619, 131313), (777, 104611), (1183, 68709), (1443, 56329), (1857, 43771), (3367, 24141), (3549, 22903), (4333, 18759), (6253, 12999), (8047, 10101)]