21504616

素因数分解:

$2^3\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2803}}^1$

素因数の和:2953

約数の個数: 32

約数和(自身を含む): 46434240

約数和(自身を除く): 24929624

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 137, 274, 548, 959, 1096, 1918, 2803, 3836, 5606, 7672, 11212, 19621, 22424, 39242, 78484, 156968, 384011, 768022, 1536044, 2688077, 3072088, 5376154, 10752308, 21504616]

約数ペア:

[(1, 21504616), (2, 10752308), (4, 5376154), (7, 3072088), (8, 2688077), (14, 1536044), (28, 768022), (56, 384011), (137, 156968), (274, 78484), (548, 39242), (959, 22424), (1096, 19621), (1918, 11212), (2803, 7672), (3836, 5606)]