21895040

素因数分解:

$2^7\times 5^1\times {\mathrm{34211}}^1$

素因数の和:34230

約数の個数: 32

約数和(自身を含む): 52344360

約数和(自身を除く): 30449320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 34211, 68422, 136844, 171055, 273688, 342110, 547376, 684220, 1094752, 1368440, 2189504, 2736880, 4379008, 5473760, 10947520, 21895040]

約数ペア:

[(1, 21895040), (2, 10947520), (4, 5473760), (5, 4379008), (8, 2736880), (10, 2189504), (16, 1368440), (20, 1094752), (32, 684220), (40, 547376), (64, 342110), (80, 273688), (128, 171055), (160, 136844), (320, 68422), (640, 34211)]