28219653

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{947}}^1$

素因数の和:1014

約数の個数: 48

約数和(自身を含む): 52056576

約数和(自身を除く): 23836923

約数列:

[1, 3, 7, 9, 11, 21, 33, 43, 63, 77, 99, 129, 231, 301, 387, 473, 693, 903, 947, 1419, 2709, 2841, 3311, 4257, 6629, 8523, 9933, 10417, 19887, 29799, 31251, 40721, 59661, 72919, 93753, 122163, 218757, 285047, 366489, 447931, 656271, 855141, 1343793, 2565423, 3135517, 4031379, 9406551, 28219653]

約数ペア:

[(1, 28219653), (3, 9406551), (7, 4031379), (9, 3135517), (11, 2565423), (21, 1343793), (33, 855141), (43, 656271), (63, 447931), (77, 366489), (99, 285047), (129, 218757), (231, 122163), (301, 93753), (387, 72919), (473, 59661), (693, 40721), (903, 31251), (947, 29799), (1419, 19887), (2709, 10417), (2841, 9933), (3311, 8523), (4257, 6629)]