20877219

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1009}}^1$

素因数の和:1056

約数の個数: 36

約数和(自身を含む): 34925800

約数和(自身を除く): 14048581

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 121, 171, 209, 363, 627, 1009, 1089, 1881, 2299, 3027, 6897, 9081, 11099, 19171, 20691, 33297, 57513, 99891, 122089, 172539, 210881, 366267, 632643, 1098801, 1897929, 2319691, 6959073, 20877219]

約数ペア:

[(1, 20877219), (3, 6959073), (9, 2319691), (11, 1897929), (19, 1098801), (33, 632643), (57, 366267), (99, 210881), (121, 172539), (171, 122089), (209, 99891), (363, 57513), (627, 33297), (1009, 20691), (1089, 19171), (1881, 11099), (2299, 9081), (3027, 6897)]