18821631

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{449}}^1$

素因数の和:698

約数の個数: 16

約数和(自身を含む): 25596000

約数和(自身を除く): 6774369

約数列:

[1, 3, 89, 157, 267, 449, 471, 1347, 13973, 39961, 41919, 70493, 119883, 211479, 6273877, 18821631]

約数ペア:

[(1, 18821631), (3, 6273877), (89, 211479), (157, 119883), (267, 70493), (449, 41919), (471, 39961), (1347, 13973)]