21149756

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{1489}}^1$

素因数の和:1613

約数の個数: 24

約数和(自身を含む): 38298960

約数和(自身を除く): 17149204

約数列:

[1, 2, 4, 53, 67, 106, 134, 212, 268, 1489, 2978, 3551, 5956, 7102, 14204, 78917, 99763, 157834, 199526, 315668, 399052, 5287439, 10574878, 21149756]

約数ペア:

[(1, 21149756), (2, 10574878), (4, 5287439), (53, 399052), (67, 315668), (106, 199526), (134, 157834), (212, 99763), (268, 78917), (1489, 14204), (2978, 7102), (3551, 5956)]