19982884

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{173}}^1\times {\mathrm{431}}^1$

素因数の和:675

約数の個数: 24

約数和(自身を含む): 35779968

約数和(自身を除く): 15797084

約数列:

[1, 2, 4, 67, 134, 173, 268, 346, 431, 692, 862, 1724, 11591, 23182, 28877, 46364, 57754, 74563, 115508, 149126, 298252, 4995721, 9991442, 19982884]

約数ペア:

[(1, 19982884), (2, 9991442), (4, 4995721), (67, 298252), (134, 149126), (173, 115508), (268, 74563), (346, 57754), (431, 46364), (692, 28877), (862, 23182), (1724, 11591)]