18796185

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:175

約数の個数: 64

約数和(自身を含む): 35458560

約数和(自身を除く): 16662375

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 53, 71, 111, 135, 159, 185, 213, 265, 333, 355, 477, 555, 639, 795, 999, 1065, 1431, 1665, 1917, 1961, 2385, 2627, 3195, 3763, 4995, 5883, 7155, 7881, 9585, 9805, 11289, 13135, 17649, 18815, 23643, 29415, 33867, 39405, 52947, 56445, 70929, 88245, 101601, 118215, 139231, 169335, 264735, 354645, 417693, 508005, 696155, 1253079, 2088465, 3759237, 6265395, 18796185]

約数ペア:

[(1, 18796185), (3, 6265395), (5, 3759237), (9, 2088465), (15, 1253079), (27, 696155), (37, 508005), (45, 417693), (53, 354645), (71, 264735), (111, 169335), (135, 139231), (159, 118215), (185, 101601), (213, 88245), (265, 70929), (333, 56445), (355, 52947), (477, 39405), (555, 33867), (639, 29415), (795, 23643), (999, 18815), (1065, 17649), (1431, 13135), (1665, 11289), (1917, 9805), (1961, 9585), (2385, 7881), (2627, 7155), (3195, 5883), (3763, 4995)]