18438939

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{317}}^1$

素因数の和:627

約数の個数: 24

約数和(自身を含む): 27978912

約数和(自身を除く): 9539973

約数列:

[1, 3, 9, 23, 69, 207, 281, 317, 843, 951, 2529, 2853, 6463, 7291, 19389, 21873, 58167, 65619, 89077, 267231, 801693, 2048771, 6146313, 18438939]

約数ペア:

[(1, 18438939), (3, 6146313), (9, 2048771), (23, 801693), (69, 267231), (207, 89077), (281, 65619), (317, 58167), (843, 21873), (951, 19389), (2529, 7291), (2853, 6463)]