21127432

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{577}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 41616000

約数和(自身を除く): 20488568

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 199, 398, 577, 796, 1154, 1592, 2308, 4577, 4616, 9154, 13271, 18308, 26542, 36616, 53084, 106168, 114823, 229646, 459292, 918584, 2640929, 5281858, 10563716, 21127432]

約数ペア:

[(1, 21127432), (2, 10563716), (4, 5281858), (8, 2640929), (23, 918584), (46, 459292), (92, 229646), (184, 114823), (199, 106168), (398, 53084), (577, 36616), (796, 26542), (1154, 18308), (1592, 13271), (2308, 9154), (4577, 4616)]