28088319

素因数分解:

$3^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{1753}}^1$

素因数の和:1879

約数の個数: 24

約数和(自身を含む): 43990320

約数和(自身を除く): 15902001

約数列:

[1, 3, 7, 21, 49, 109, 147, 327, 763, 1753, 2289, 5259, 5341, 12271, 16023, 36813, 85897, 191077, 257691, 573231, 1337539, 4012617, 9362773, 28088319]

約数ペア:

[(1, 28088319), (3, 9362773), (7, 4012617), (21, 1337539), (49, 573231), (109, 257691), (147, 191077), (327, 85897), (763, 36813), (1753, 16023), (2289, 12271), (5259, 5341)]