20820877

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{853}}^1$

素因数の和:1188

約数の個数: 16

約数和(自身を含む): 26070912

約数和(自身を除く): 5250035

約数列:

[1, 7, 11, 77, 317, 853, 2219, 3487, 5971, 9383, 24409, 65681, 270401, 1892807, 2974411, 20820877]

約数ペア:

[(1, 20820877), (7, 2974411), (11, 1892807), (77, 270401), (317, 65681), (853, 24409), (2219, 9383), (3487, 5971)]