20427255

素因数分解:

$3^3\times 5^1\times {\mathrm{337}}^1\times {\mathrm{449}}^1$

素因数の和:800

約数の個数: 32

約数和(自身を含む): 36504000

約数和(自身を除く): 16076745

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 337, 449, 1011, 1347, 1685, 2245, 3033, 4041, 5055, 6735, 9099, 12123, 15165, 20205, 45495, 60615, 151313, 453939, 756565, 1361817, 2269695, 4085451, 6809085, 20427255]

約数ペア:

[(1, 20427255), (3, 6809085), (5, 4085451), (9, 2269695), (15, 1361817), (27, 756565), (45, 453939), (135, 151313), (337, 60615), (449, 45495), (1011, 20205), (1347, 15165), (1685, 12123), (2245, 9099), (3033, 6735), (4041, 5055)]