21182469

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{857}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 35582976

約数和(自身を除く): 14400507

約数列:

[1, 3, 7, 11, 21, 33, 77, 107, 231, 321, 749, 857, 1177, 2247, 2571, 3531, 5999, 8239, 9427, 17997, 24717, 28281, 65989, 91699, 197967, 275097, 641893, 1008689, 1925679, 3026067, 7060823, 21182469]

約数ペア:

[(1, 21182469), (3, 7060823), (7, 3026067), (11, 1925679), (21, 1008689), (33, 641893), (77, 275097), (107, 197967), (231, 91699), (321, 65989), (749, 28281), (857, 24717), (1177, 17997), (2247, 9427), (2571, 8239), (3531, 5999)]