18266715

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:130

約数の個数: 80

約数和(自身を含む): 35754048

約数和(自身を除く): 17487333

約数列:

[1, 3, 5, 9, 15, 23, 27, 37, 45, 53, 69, 81, 111, 115, 135, 159, 185, 207, 265, 333, 345, 405, 477, 555, 621, 795, 851, 999, 1035, 1219, 1431, 1665, 1863, 1961, 2385, 2553, 2997, 3105, 3657, 4255, 4293, 4995, 5883, 6095, 7155, 7659, 9315, 9805, 10971, 12765, 14985, 17649, 18285, 21465, 22977, 29415, 32913, 38295, 45103, 52947, 54855, 68931, 88245, 98739, 114885, 135309, 158841, 164565, 225515, 264735, 344655, 405927, 493695, 676545, 794205, 1217781, 2029635, 3653343, 6088905, 18266715]

約数ペア:

[(1, 18266715), (3, 6088905), (5, 3653343), (9, 2029635), (15, 1217781), (23, 794205), (27, 676545), (37, 493695), (45, 405927), (53, 344655), (69, 264735), (81, 225515), (111, 164565), (115, 158841), (135, 135309), (159, 114885), (185, 98739), (207, 88245), (265, 68931), (333, 54855), (345, 52947), (405, 45103), (477, 38295), (555, 32913), (621, 29415), (795, 22977), (851, 21465), (999, 18285), (1035, 17649), (1219, 14985), (1431, 12765), (1665, 10971), (1863, 9805), (1961, 9315), (2385, 7659), (2553, 7155), (2997, 6095), (3105, 5883), (3657, 4995), (4255, 4293)]