21013139

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{6089}}^1$

素因数の和:6142

約数の個数: 16

約数和(自身を含む): 26308800

約数和(自身を除く): 5295661

約数列:

[1, 7, 17, 29, 119, 203, 493, 3451, 6089, 42623, 103513, 176581, 724591, 1236067, 3001877, 21013139]

約数ペア:

[(1, 21013139), (7, 3001877), (17, 1236067), (29, 724591), (119, 176581), (203, 103513), (493, 42623), (3451, 6089)]