20611448

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 46569600

約数和(自身を除く): 25958152

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 43, 44, 52, 86, 88, 104, 143, 172, 286, 344, 419, 473, 559, 572, 838, 946, 1118, 1144, 1676, 1892, 2236, 3352, 3784, 4472, 4609, 5447, 6149, 9218, 10894, 12298, 18017, 18436, 21788, 24596, 36034, 36872, 43576, 49192, 59917, 72068, 119834, 144136, 198187, 234221, 239668, 396374, 468442, 479336, 792748, 936884, 1585496, 1873768, 2576431, 5152862, 10305724, 20611448]

約数ペア:

[(1, 20611448), (2, 10305724), (4, 5152862), (8, 2576431), (11, 1873768), (13, 1585496), (22, 936884), (26, 792748), (43, 479336), (44, 468442), (52, 396374), (86, 239668), (88, 234221), (104, 198187), (143, 144136), (172, 119834), (286, 72068), (344, 59917), (419, 49192), (473, 43576), (559, 36872), (572, 36034), (838, 24596), (946, 21788), (1118, 18436), (1144, 18017), (1676, 12298), (1892, 10894), (2236, 9218), (3352, 6149), (3784, 5447), (4472, 4609)]