20970081

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{1109}}^1$

素因数の和:1317

約数の個数: 24

約数和(自身を含む): 33246720

約数和(自身を除く): 12276639

約数列:

[1, 3, 9, 11, 33, 99, 191, 573, 1109, 1719, 2101, 3327, 6303, 9981, 12199, 18909, 36597, 109791, 211819, 635457, 1906371, 2330009, 6990027, 20970081]

約数ペア:

[(1, 20970081), (3, 6990027), (9, 2330009), (11, 1906371), (33, 635457), (99, 211819), (191, 109791), (573, 36597), (1109, 18909), (1719, 12199), (2101, 9981), (3327, 6303)]