20786337

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{521}}^1$

素因数の和:582

約数の個数: 48

約数和(自身を含む): 36481536

約数和(自身を除く): 15695199

約数列:

[1, 3, 9, 11, 13, 31, 33, 39, 93, 99, 117, 143, 279, 341, 403, 429, 521, 1023, 1209, 1287, 1563, 3069, 3627, 4433, 4689, 5731, 6773, 13299, 16151, 17193, 20319, 39897, 48453, 51579, 60957, 74503, 145359, 177661, 209963, 223509, 532983, 629889, 670527, 1598949, 1889667, 2309593, 6928779, 20786337]

約数ペア:

[(1, 20786337), (3, 6928779), (9, 2309593), (11, 1889667), (13, 1598949), (31, 670527), (33, 629889), (39, 532983), (93, 223509), (99, 209963), (117, 177661), (143, 145359), (279, 74503), (341, 60957), (403, 51579), (429, 48453), (521, 39897), (1023, 20319), (1209, 17193), (1287, 16151), (1563, 13299), (3069, 6773), (3627, 5731), (4433, 4689)]