28574271

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1381}}^1$

素因数の和:1428

約数の個数: 36

約数和(自身を含む): 47789560

約数和(自身を除く): 19215289

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 121, 171, 209, 363, 627, 1089, 1381, 1881, 2299, 4143, 6897, 12429, 15191, 20691, 26239, 45573, 78717, 136719, 167101, 236151, 288629, 501303, 865887, 1503909, 2597661, 3174919, 9524757, 28574271]

約数ペア:

[(1, 28574271), (3, 9524757), (9, 3174919), (11, 2597661), (19, 1503909), (33, 865887), (57, 501303), (99, 288629), (121, 236151), (171, 167101), (209, 136719), (363, 78717), (627, 45573), (1089, 26239), (1381, 20691), (1881, 15191), (2299, 12429), (4143, 6897)]