21262048

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1$

素因数の和:335

約数の個数: 48

約数和(自身を含む): 43593984

約数和(自身を除く): 22331936

約数列:

[1, 2, 4, 8, 16, 32, 47, 67, 94, 134, 188, 211, 268, 376, 422, 536, 752, 844, 1072, 1504, 1688, 2144, 3149, 3376, 6298, 6752, 9917, 12596, 14137, 19834, 25192, 28274, 39668, 50384, 56548, 79336, 100768, 113096, 158672, 226192, 317344, 452384, 664439, 1328878, 2657756, 5315512, 10631024, 21262048]

約数ペア:

[(1, 21262048), (2, 10631024), (4, 5315512), (8, 2657756), (16, 1328878), (32, 664439), (47, 452384), (67, 317344), (94, 226192), (134, 158672), (188, 113096), (211, 100768), (268, 79336), (376, 56548), (422, 50384), (536, 39668), (752, 28274), (844, 25192), (1072, 19834), (1504, 14137), (1688, 12596), (2144, 9917), (3149, 6752), (3376, 6298)]