20812638

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2371}}^1$

素因数の和:2413

約数の個数: 64

約数和(自身を含む): 54650880

約数和(自身を除く): 33838242

約数列:

[1, 2, 3, 6, 7, 11, 14, 19, 21, 22, 33, 38, 42, 57, 66, 77, 114, 133, 154, 209, 231, 266, 399, 418, 462, 627, 798, 1254, 1463, 2371, 2926, 4389, 4742, 7113, 8778, 14226, 16597, 26081, 33194, 45049, 49791, 52162, 78243, 90098, 99582, 135147, 156486, 182567, 270294, 315343, 365134, 495539, 547701, 630686, 946029, 991078, 1095402, 1486617, 1892058, 2973234, 3468773, 6937546, 10406319, 20812638]

約数ペア:

[(1, 20812638), (2, 10406319), (3, 6937546), (6, 3468773), (7, 2973234), (11, 1892058), (14, 1486617), (19, 1095402), (21, 991078), (22, 946029), (33, 630686), (38, 547701), (42, 495539), (57, 365134), (66, 315343), (77, 270294), (114, 182567), (133, 156486), (154, 135147), (209, 99582), (231, 90098), (266, 78243), (399, 52162), (418, 49791), (462, 45049), (627, 33194), (798, 26081), (1254, 16597), (1463, 14226), (2371, 8778), (2926, 7113), (4389, 4742)]