21513789

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4261}}^1$

素因数の和:4298

約数の個数: 32

約数和(自身を含む): 36823680

約数和(自身を除く): 15309891

約数列:

[1, 3, 9, 11, 17, 27, 33, 51, 99, 153, 187, 297, 459, 561, 1683, 4261, 5049, 12783, 38349, 46871, 72437, 115047, 140613, 217311, 421839, 651933, 796807, 1265517, 1955799, 2390421, 7171263, 21513789]

約数ペア:

[(1, 21513789), (3, 7171263), (9, 2390421), (11, 1955799), (17, 1265517), (27, 796807), (33, 651933), (51, 421839), (99, 217311), (153, 140613), (187, 115047), (297, 72437), (459, 46871), (561, 38349), (1683, 12783), (4261, 5049)]