20227185

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:335

約数の個数: 64

約数和(自身を含む): 40124160

約数和(自身を除く): 19896975

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 53, 55, 99, 135, 159, 165, 257, 265, 297, 477, 495, 583, 771, 795, 1285, 1431, 1485, 1749, 2313, 2385, 2827, 2915, 3855, 5247, 6939, 7155, 8481, 8745, 11565, 13621, 14135, 15741, 25443, 26235, 34695, 40863, 42405, 68105, 76329, 78705, 122589, 127215, 149831, 204315, 367767, 381645, 449493, 612945, 749155, 1348479, 1838835, 2247465, 4045437, 6742395, 20227185]

約数ペア:

[(1, 20227185), (3, 6742395), (5, 4045437), (9, 2247465), (11, 1838835), (15, 1348479), (27, 749155), (33, 612945), (45, 449493), (53, 381645), (55, 367767), (99, 204315), (135, 149831), (159, 127215), (165, 122589), (257, 78705), (265, 76329), (297, 68105), (477, 42405), (495, 40863), (583, 34695), (771, 26235), (795, 25443), (1285, 15741), (1431, 14135), (1485, 13621), (1749, 11565), (2313, 8745), (2385, 8481), (2827, 7155), (2915, 6939), (3855, 5247)]