20688784

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{17713}}^1$

素因数の和:17794

約数の個数: 20

約数和(自身を含む): 40635916

約数和(自身を除く): 19947132

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 17713, 35426, 70852, 141704, 283408, 1293049, 2586098, 5172196, 10344392, 20688784]

約数ペア:

[(1, 20688784), (2, 10344392), (4, 5172196), (8, 2586098), (16, 1293049), (73, 283408), (146, 141704), (292, 70852), (584, 35426), (1168, 17713)]