21067748

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{6047}}^1$

素因数の和:6131

約数の個数: 24

約数和(自身を含む): 40303872

約数和(自身を除く): 19236124

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 871, 1742, 3484, 6047, 12094, 24188, 78611, 157222, 314444, 405149, 810298, 1620596, 5266937, 10533874, 21067748]

約数ペア:

[(1, 21067748), (2, 10533874), (4, 5266937), (13, 1620596), (26, 810298), (52, 405149), (67, 314444), (134, 157222), (268, 78611), (871, 24188), (1742, 12094), (3484, 6047)]