21052171

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{9311}}^1$

素因数の和:9354

約数の個数: 16

約数和(自身を含む): 26818560

約数和(自身を除く): 5766389

約数列:

[1, 7, 17, 19, 119, 133, 323, 2261, 9311, 65177, 158287, 176909, 1108009, 1238363, 3007453, 21052171]

約数ペア:

[(1, 21052171), (7, 3007453), (17, 1238363), (19, 1108009), (119, 176909), (133, 158287), (323, 65177), (2261, 9311)]