21666308

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2939}}^1$

素因数の和:3059

約数の個数: 24

約数和(自身を含む): 40336800

約数和(自身を除く): 18670492

約数列:

[1, 2, 4, 19, 38, 76, 97, 194, 388, 1843, 2939, 3686, 5878, 7372, 11756, 55841, 111682, 223364, 285083, 570166, 1140332, 5416577, 10833154, 21666308]

約数ペア:

[(1, 21666308), (2, 10833154), (4, 5416577), (19, 1140332), (38, 570166), (76, 285083), (97, 223364), (194, 111682), (388, 55841), (1843, 11756), (2939, 7372), (3686, 5878)]