2018989989

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{6257}}^1$

素因数の和:6339

約数の個数: 64

約数和(自身を含む): 3424377600

約数和(自身を除く): 1405387611

約数列:

[1, 3, 9, 17, 19, 27, 37, 51, 57, 111, 153, 171, 323, 333, 459, 513, 629, 703, 969, 999, 1887, 2109, 2907, 5661, 6257, 6327, 8721, 11951, 16983, 18771, 18981, 35853, 56313, 106369, 107559, 118883, 168939, 231509, 319107, 322677, 356649, 694527, 957321, 1069947, 2021011, 2083581, 2871963, 3209841, 3935653, 4398671, 6063033, 6250743, 11806959, 13196013, 18189099, 35420877, 39588039, 54567297, 74777407, 106262631, 118764117, 224332221, 672996663, 2018989989]

約数ペア:

[(1, 2018989989), (3, 672996663), (9, 224332221), (17, 118764117), (19, 106262631), (27, 74777407), (37, 54567297), (51, 39588039), (57, 35420877), (111, 18189099), (153, 13196013), (171, 11806959), (323, 6250743), (333, 6063033), (459, 4398671), (513, 3935653), (629, 3209841), (703, 2871963), (969, 2083581), (999, 2021011), (1887, 1069947), (2109, 957321), (2907, 694527), (5661, 356649), (6257, 322677), (6327, 319107), (8721, 231509), (11951, 168939), (16983, 118883), (18771, 107559), (18981, 106369), (35853, 56313)]