21120004

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{1877}}^1$

素因数の和:2007

約数の個数: 24

約数和(自身を含む): 38649240

約数和(自身を除く): 17529236

約数列:

[1, 2, 4, 29, 58, 97, 116, 194, 388, 1877, 2813, 3754, 5626, 7508, 11252, 54433, 108866, 182069, 217732, 364138, 728276, 5280001, 10560002, 21120004]

約数ペア:

[(1, 21120004), (2, 10560002), (4, 5280001), (29, 728276), (58, 364138), (97, 217732), (116, 182069), (194, 108866), (388, 54433), (1877, 11252), (2813, 7508), (3754, 5626)]