20519151

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{857}}^1$

素因数の和:1230

約数の個数: 16

約数和(自身を含む): 28664064

約数和(自身を除く): 8144913

約数列:

[1, 3, 23, 69, 347, 857, 1041, 2571, 7981, 19711, 23943, 59133, 297379, 892137, 6839717, 20519151]

約数ペア:

[(1, 20519151), (3, 6839717), (23, 892137), (69, 297379), (347, 59133), (857, 23943), (1041, 19711), (2571, 7981)]