213184447

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{443}}^1$

素因数の和:548

約数の個数: 32

約数和(自身を含む): 264268800

約数和(自身を除く): 51084353

約数列:

[1, 7, 23, 49, 61, 161, 343, 427, 443, 1127, 1403, 2989, 3101, 7889, 9821, 10189, 20923, 21707, 27023, 68747, 71323, 151949, 189161, 481229, 499261, 621529, 1324127, 3494827, 4350703, 9268889, 30454921, 213184447]

約数ペア:

[(1, 213184447), (7, 30454921), (23, 9268889), (49, 4350703), (61, 3494827), (161, 1324127), (343, 621529), (427, 499261), (443, 481229), (1127, 189161), (1403, 151949), (2989, 71323), (3101, 68747), (7889, 27023), (9821, 21707), (10189, 20923)]