21112155

素因数分解:

$3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2621}}^1$

素因数の和:2811

約数の個数: 24

約数和(自身を含む): 36812880

約数和(自身を除く): 15700725

約数列:

[1, 3, 5, 9, 15, 45, 179, 537, 895, 1611, 2621, 2685, 7863, 8055, 13105, 23589, 39315, 117945, 469159, 1407477, 2345795, 4222431, 7037385, 21112155]

約数ペア:

[(1, 21112155), (3, 7037385), (5, 4222431), (9, 2345795), (15, 1407477), (45, 469159), (179, 117945), (537, 39315), (895, 23589), (1611, 13105), (2621, 8055), (2685, 7863)]