19994051

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{2521}}^1$

素因数の和:2642

約数の個数: 16

約数和(自身を含む): 25179648

約数和(自身を除く): 5185597

約数列:

[1, 7, 11, 77, 103, 721, 1133, 2521, 7931, 17647, 27731, 194117, 259663, 1817641, 2856293, 19994051]

約数ペア:

[(1, 19994051), (7, 2856293), (11, 1817641), (77, 259663), (103, 194117), (721, 27731), (1133, 17647), (2521, 7931)]