28537767

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1993}}^1$

素因数の和:2079

約数の個数: 24

約数和(自身を含む): 43341584

約数和(自身を除く): 14803817

約数列:

[1, 3, 9, 37, 43, 111, 129, 333, 387, 1591, 1993, 4773, 5979, 14319, 17937, 73741, 85699, 221223, 257097, 663669, 771291, 3170863, 9512589, 28537767]

約数ペア:

[(1, 28537767), (3, 9512589), (9, 3170863), (37, 771291), (43, 663669), (111, 257097), (129, 221223), (333, 85699), (387, 73741), (1591, 17937), (1993, 14319), (4773, 5979)]