20687772

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2539}}^1$

素因数の和:2650

約数の個数: 48

約数和(自身を含む): 55758080

約数和(自身を除く): 35070308

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 97, 194, 291, 388, 582, 679, 1164, 1358, 2037, 2539, 2716, 4074, 5078, 7617, 8148, 10156, 15234, 17773, 30468, 35546, 53319, 71092, 106638, 213276, 246283, 492566, 738849, 985132, 1477698, 1723981, 2955396, 3447962, 5171943, 6895924, 10343886, 20687772]

約数ペア:

[(1, 20687772), (2, 10343886), (3, 6895924), (4, 5171943), (6, 3447962), (7, 2955396), (12, 1723981), (14, 1477698), (21, 985132), (28, 738849), (42, 492566), (84, 246283), (97, 213276), (194, 106638), (291, 71092), (388, 53319), (582, 35546), (679, 30468), (1164, 17773), (1358, 15234), (2037, 10156), (2539, 8148), (2716, 7617), (4074, 5078)]